WO2013114976A1 - 高分子化合物および組成物、並びにこれらを用いた発光素子 - Google Patents
高分子化合物および組成物、並びにこれらを用いた発光素子 Download PDFInfo
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- WO2013114976A1 WO2013114976A1 PCT/JP2013/050942 JP2013050942W WO2013114976A1 WO 2013114976 A1 WO2013114976 A1 WO 2013114976A1 JP 2013050942 W JP2013050942 W JP 2013050942W WO 2013114976 A1 WO2013114976 A1 WO 2013114976A1
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- C08G73/026—Wholly aromatic polyamines
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- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
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- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
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- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/31—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain
- C08G2261/316—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain bridged by heteroatoms, e.g. N, P, Si or B
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
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Definitions
- the present invention relates to a polymer compound and a composition, and a light emitting device using the same.
- the light-emitting element manufactured using the polymer compound according to the above patent document may have insufficient hole transportability.
- the present invention provides the following polymer compound, a composition containing the polymer compound, an organic thin film, an insolubilized organic thin film, a light-emitting element, a planar light source, and a display device.
- the present invention also provides the following raw material compound and production method of the polymer compound.
- a structural unit represented by the following formula (1) is contained in an amount of 51 mol% or more based on the total of all structural units, and a structural unit represented by the following formula (2) and a structure represented by the following formula (3): A polymer compound comprising at least one of units.
- a represents an integer of 1 to 3
- b represents 0 or 1.
- Ar 1 and Ar 3 each independently represent an arylene group which may have a substituent, or a divalent heterocyclic group which may have a substituent
- Ar 2 and Ar 4 are Each independently has an arylene group which may have a substituent, a divalent heterocyclic group which may have a substituent, or an arylene group and a substituent which may have a substituent.
- Ar 2 When a plurality of Ar 2 are present, they may be the same or different.
- R A , R B and R C each independently have a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, or a substituent.
- a monovalent heterocyclic group is shown. If R B there are a plurality, they may be the same or different.
- na represents an integer of 0 to 3
- nb represents an integer of 0 to 12
- nA represents 0 or 1
- n represents an integer of 0 to 4.
- Ar 5 represents a (2 + n) -valent aromatic hydrocarbon group which may have a substituent or a (2 + n) -valent heterocyclic group which may have a substituent.
- L a and L b each independently represent an alkylene group which may have a substituent or a phenylene group which may have a substituent. When a plurality of La are present, they may be the same or different. If L b there are a plurality, they may be the same or different.
- L A represents an oxygen atom or a sulfur atom.
- X represents a monovalent crosslinkable group. When two or more X exists, they may be the same or different.
- c represents 0 or 1;
- Ar 6 and Ar 8 each independently represent an arylene group which may have a substituent or a divalent heterocyclic group which may have a substituent, and Ar 7 has a substituent.
- R 1 represents a monovalent crosslinkable group
- R 2 has a monovalent crosslinkable group, an alkyl group which may have a substituent, an aryl group which may have a substituent, or a substituent.
- the monovalent heterocyclic group which may be carried out is shown.
- nc represents an integer of 0 to 3
- nd represents an integer of 0 to 12
- nB represents 0 or 1
- m represents an integer of 0 to 2.
- L c and L d each independently represent an alkylene group which may have a substituent or a phenylene group which may have a substituent.
- L c represents an oxygen atom or a sulfur atom. If L B there are a plurality, they may be the same or different.
- X represents a monovalent crosslinkable group. When two or more X exists, they may be the same or different.
- R 3 has a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryl group which may have a substituent, or a substituent.
- L X1 represents an oxygen atom, a sulfur atom, a carbonyl group or a group represented by —O—CO—.
- R 4 , R 5 , R 6 , R 7 and R 8 each independently represent a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, or a substituent.
- An alkylthio group which may have, an aryl group which may have a substituent, an aryloxy group which may have a substituent, an arylthio group which may have a substituent, and a substituent.
- a monovalent heterocyclic group which may have, an amino group which may have a substituent, a silyl group which may have a substituent, an acyl group which may have a substituent, a substituent An acyloxy group, a halogen atom, a cyano group or a nitro group which may have ]
- a plurality of X contain at least one monovalent crosslinkable group represented by the following formula (X-1) which may have a substituent, and The polymer compound according to [1] or [2], which contains at least one monovalent crosslinkable group represented by X-2).
- ne and nf each independently represent 0 or 1.
- L X1 represents an oxygen atom, a sulfur atom, a carbonyl group or a group represented by —O—CO—.
- R 4 , R 5 , R 6 , R 7 and R 8 each independently represent a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, or a substituent.
- An alkylthio group which may have, an aryl group which may have a substituent, an aryloxy group which may have a substituent, an arylthio group which may have a substituent, and a substituent.
- a monovalent heterocyclic group which may have, an amino group which may have a substituent, a silyl group which may have a substituent, an acyl group which may have a substituent, a substituent An acyloxy group, a halogen atom, a cyano group or a nitro group which may have ] [6]
- the Ar 2 may have a substituent, a 2,7-fluorenediyl group, an optionally substituted naphthalenediyl group, and an optionally substituted phenanthrene diyl Group, dihydrophenanthrene diyl group which may have a substituent, anthracene diyl group which may have a substituent, pyrenediyl group which may have a substituent or a substituent
- the polymer compound according to any one of [1] to [5], which is a perylenediyl group.
- [7] A polymerization reaction of a monomer composition including a first monomer represented by the following formula (5) and a second monomer represented by the following formula (6) is performed, and [1] to [ [6] A method for producing a polymer compound, wherein the polymer compound according to any one of [6] is obtained.
- Ar 9 and Ar 11 each independently represent an arylene group which may have a substituent, or a divalent heterocyclic group which may have a substituent
- Ar 10 and Ar 12 each independently An arylene group which may have a substituent, a divalent heterocyclic group which may have a substituent, or an arylene group and a substituent which may have a substituent.
- 2 represents a divalent group in which two or more groups that may be the same or different and selected from the group consisting of divalent heterocyclic groups may be connected, and Ar 9 , Ar 10 , Ar 11, and Ar 12 are each , These groups may be linked to a group other than the group bonded to the nitrogen atom to which these groups are bonded to form a ring structure.
- R D , R E, and R F each independently have a hydrogen atom, an alkyl group that may have a substituent, an aryl group that may have a substituent, or a substituent.
- a monovalent heterocyclic group is shown. If R E there are a plurality, they may be the same or different.
- Z 1 and Z 2 each independently represent a group selected from the following substituent group A.
- ⁇ Substituent group A> A group represented by —B (OR 101 ) 2 (R 101 represents a hydrogen atom or an alkyl group which may have a substituent, and is linked to each other to form a ring structure with an oxygen atom bonded to R 101 ; A plurality of R 101 may be the same or different).
- a group represented by -BF 4 Q 1 Q 1 represents a monovalent cation selected from the group consisting of Li + , Na + , K + , Rb + and Cs + );
- a group represented by -MgY 1 Y 1 represents a chlorine atom, a bromine atom or an iodine atom
- a group represented by —ZnY 2 Y 2 represents a chlorine atom, a bromine atom or an iodine atom
- a group represented by —Sn (R 102 ) 3 R 102 represents a hydrogen atom or an alkyl group, and may be linked to each other to form a ring structure together with a tin atom bonded to R 102 .
- R 102 may be the same or different.
- f represents an integer of 0 to 3
- g represents 0 or 1.
- Ar 13 and Ar 15 each independently represents an arylene group which may have a substituent or a divalent heterocyclic group which may have a substituent, and Ar 14 and Ar 16 each represents a substituent.
- An arylene group optionally having a substituent, a divalent heterocyclic group optionally having a substituent, or an arylene group optionally having a substituent and a group consisting of a divalent heterocyclic group 2 represents a divalent group in which two or more selected groups which may be the same or different are connected, and Ar 13 , Ar 14 , Ar 15 and Ar 16 are each bonded to the nitrogen atom to which these groups are bonded.
- a ring structure may be formed by linking each other with a group other than the group in question. When a plurality of Ar 14 are present, they may be the same or different.
- R G , R H and R I each independently have a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, or a substituent.
- a monovalent heterocyclic group is shown.
- RH When a plurality of RH are present, they may be the same or different.
- Z 3 and Z 4 each independently represent a group selected from the following substituent group B. ⁇ Substituent group B> A chlorine atom, a bromine atom, an iodine atom, a group represented by —O—S ( ⁇ O) 2 R 103 (R 103 may have an alkyl group which may have a substituent or a substituent. Represents an aryl group).
- a polymer compound useful for producing a light emitting device having excellent hole transportability Further, according to a preferred embodiment of the present invention, a polymer compound useful for producing a light emitting device having excellent durability (for example, luminance life) can be provided. Moreover, according to this invention, the composition containing the said high molecular compound, an organic thin film, an insolubilized organic thin film, a light emitting element, a planar light source, and a display apparatus can be provided. Furthermore, according to this invention, the raw material compound and manufacturing method of the said high molecular compound can be provided.
- FIG. 1 is a schematic cross-sectional view showing a light emitting device according to a first embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view showing a light emitting device according to the second embodiment of the present invention.
- FIG. 3 is a schematic cross-sectional view showing an embodiment of the planar light source of the present invention.
- Me represents a methyl group
- Et represents an ethyl group
- Ph represents a phenyl group
- t-Bu and “tBu” represent a tert-butyl group.
- “Structural unit” means a unit structure present in a polymer compound.
- the “structural unit” is preferably contained in the polymer compound as a “repeating unit (unit structure present in two or more units in the polymer compound)”.
- C xy (x and y are positive integers satisfying x ⁇ y) means that the number of carbon atoms in the partial structure corresponding to the functional group name described immediately after this term is x Means in the range of y. That is, when the organic group described immediately after “C xy ” is an organic group named by combining a plurality of functional group names (for example, a C xy alkoxyphenyl group), a plurality of functional groups This means that the number of carbon atoms of the partial structure corresponding to the functional group name (for example, alkoxy) described immediately after “C xy ” in the name is in the range of x to y.
- a plurality of functional group names for example, a C xy alkoxyphenyl group
- C 1-12 alkyl group means an alkyl group having 1 to 12 carbon atoms
- C 1-12 alkoxyphenyl group means “an alkoxy group having 1 to 12 carbon atoms”. Meaning a phenyl group.
- the term “may have a substituent” means that the functional group described immediately after this term may or may not have a substituent.
- the term “optionally substituted alkyl group” means “an unsubstituted alkyl group or an alkyl group having a substituent”.
- substituteduents include alkyl groups, alkoxy groups, alkylthio groups, aryl groups, aryloxy groups, arylthio groups, alkenyl groups, alkynyl groups, amino groups, silyl groups, halogen atoms, acyl groups, acyloxy groups, oxy
- Examples include a carbonyl group, a monovalent heterocyclic group, a heterocyclic oxy group, a heterocyclic thio group, an imine residue, an amide compound residue, an acid imide residue, a carboxy group, a hydroxy group, a nitro group, and a cyano group. These groups may further have a “substituent” selected from the above examples.
- the “alkyl group” may have a substituent, and may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group (cycloalkyl group).
- the number of carbon atoms in the linear alkyl group and the branched alkyl group is preferably 1 to 20, more preferably 1 to 15, and even more preferably, not including the number of carbon atoms of the substituent. Is 1-12.
- the number of carbon atoms of the branched alkyl group is particularly preferably 3 to 12 without including the number of carbon atoms of the substituent unless otherwise specified.
- the number of carbon atoms of the cyclic alkyl group is preferably 3 to 20, more preferably 3 to 15, and even more preferably 3 to 12, not including the number of carbon atoms of the substituent.
- alkyl group examples include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, isopentyl group, hexyl group, cyclohexyl group, heptyl group, Examples include octyl group, 2-ethylhexyl group, nonyl group, decyl group, 3,7-dimethyloctyl group, and dodecyl group.
- the “alkoxy group” may have a substituent, and may be any of a linear alkoxy group, a branched alkoxy group, and a cyclic alkoxy group (cycloalkoxy group).
- the number of carbon atoms of the straight-chain alkoxy group and the branched alkoxy group is preferably 1 to 20, more preferably 1 to 15, and even more preferably, not including the number of carbon atoms of the substituent. Is 1-12.
- the number of carbon atoms of the cyclic alkoxy group is preferably 3 to 20, more preferably 3 to 15, and still more preferably 3 to 12, excluding the number of carbon atoms of the substituent.
- the number of carbon atoms of the branched alkoxy group is particularly preferably 3 to 12, not including the number of carbon atoms of the substituent, unless otherwise specified.
- alkoxy groups include methoxy, ethoxy, propyloxy, isopropyloxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy, pentyloxy, hexyloxy, cyclohexyloxy, heptyl
- alkoxy groups include methoxy, ethoxy, propyloxy, isopropyloxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy, pentyloxy, hexyloxy, cyclohexyloxy, heptyl
- alkoxy groups include methoxy, ethoxy, propyloxy, isopropyloxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy, pentyloxy, hexyloxy, cyclohexyloxy, heptyl
- examples thereof include an oxy group, an octyloxy group, a 2-ethylhexyl
- alkylthio group may have a substituent, and may be any of a linear alkylthio group, a branched alkylthio group, and a cyclic alkylthio group (cycloalkylthio group).
- the number of carbon atoms of the linear alkylthio group and the branched alkylthio group is preferably 1 to 20, more preferably 1 to 15, excluding the number of carbon atoms of the substituent. Preferably it is 1-12.
- the number of carbon atoms of the cyclic alkylthio group is preferably 3 to 20, more preferably 3 to 15, and even more preferably 3 to 12, not including the carbon atoms of the substituent. .
- the number of carbon atoms of the branched alkylthio group is particularly preferably 3 to 12 without including the number of carbon atoms of the substituent unless otherwise specified.
- alkylthio group examples include a methylthio group, an ethylthio group, a propylthio group, an isopropylthio group, a butylthio group, an isobutylthio group, a sec-butylthio group, a tert-butylthio group, a pentylthio group, a hexylthio group, a cyclohexylthio group, a heptylthio group, Examples include octylthio group, 2-ethylhexylthio group, nonylthio group, decylthio group, 3,7-dimethyloctylthio group, and dodecylthio group.
- the “aryl group” is an atomic group remaining after removing one hydrogen atom bonded to a carbon atom constituting an aromatic ring from an aromatic hydrocarbon.
- the aryl group may have a substituent, and examples of the aryl group include those having a benzene ring and groups having a condensed ring.
- the number of carbon atoms of the aryl group is preferably 6 to 60, more preferably 6 to 48, and even more preferably 6 to 30 without including the number of carbon atoms of the substituent.
- the aromatic hydrocarbon include benzene, naphthalene, anthracene, phenanthrene, naphthacene, fluorene, pyrene, and perylene.
- aryl group examples include a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a 1-anthracenyl group, a 2-anthracenyl group, a 9-anthracenyl group, and a 2-fluorenyl group.
- the “aryloxy group” is a group represented by —O—Ar 21 .
- Ar 21 represents the aryl group.
- the aryl group represented by Ar 21 may have a substituent. Unless otherwise specified, the number of carbon atoms of the aryloxy group is preferably 6 to 60, more preferably 6 to 48, and even more preferably 6 to 30 without including the number of carbon atoms of the substituent.
- aryloxy group examples include a phenoxy group, a 1-naphthyloxy group, a 2-naphthyloxy group, a 1-anthracenyloxy group, a 2-anthracenyloxy group, a 9-anthracenyloxy group, and 2-fullyloxy group.
- An oleenyloxy group is mentioned.
- the “arylthio group” is a group represented by —S—Ar 22 .
- Ar 22 represents the aryl group.
- the aryl group represented by Ar 22 may have a substituent. Unless otherwise specified, the number of carbon atoms of the arylthio group is preferably 6 to 60, more preferably 6 to 48, and even more preferably 6 to 30 without including the number of carbon atoms of the substituent.
- arylthio group examples include a phenylthio group, a 1-naphthylthio group, a 2-naphthylthio group, a 1-anthracenylthio group, a 2-anthracenylthio group, a 9-anthracenylthio group, and a 2-fluorenylthio group.
- the “alkenyl group” may have a substituent, and may be any of a linear alkenyl group, a branched alkenyl group, and a cyclic alkenyl group.
- the number of carbon atoms of the straight-chain alkenyl group and the branched alkenyl group is preferably 2 to 20, more preferably 2 to 15, and even more preferably, not including the number of carbon atoms of the substituent. Is 2-10.
- the number of carbon atoms of the cyclic alkenyl group is preferably 3 to 20, more preferably 3 to 15, and further preferably 3 to 10, not including the number of carbon atoms of the substituent.
- the number of carbon atoms of the branched alkenyl group is particularly preferably 3 to 10 without including the number of carbon atoms of the substituent unless otherwise specified.
- alkenyl group examples include a vinyl group, 1-propenyl group, 2-propenyl group, 1-butenyl group, 2-butenyl group, 1-pentenyl group, 2-pentenyl group, 1-hexenyl group, 2-hexenyl group, A 1-octenyl group may be mentioned.
- alkynyl group may have a substituent, and may be any of a linear alkynyl group, a branched alkynyl group and a cyclic alkynyl group.
- the straight chain alkynyl group and the branched alkynyl group preferably have 2 to 20 carbon atoms, more preferably 2 to 15 carbon atoms, and more preferably 2 to 15 carbon atoms. Is 2-10.
- the number of carbon atoms of the cyclic alkynyl group is preferably 3 to 20, more preferably 3 to 15, and further preferably 3 to 10, not including the number of carbon atoms of the substituent.
- the number of carbon atoms of the branched alkynyl group is particularly preferably 3 to 10, not including the number of carbon atoms of the substituent, unless otherwise specified.
- alkynyl group examples include ethynyl group, 1-propynyl group, 2-propynyl group, 1-butynyl group, 2-butynyl group, 1-pentynyl group, 2-pentynyl group, 1-hexynyl group, 2-hexynyl group, A 1-octynyl group may be mentioned.
- the “amino group” may have a substituent and is preferably an unsubstituted amino group and one selected from an alkyl group, an aryl group, an alkyl group substituted with an aryl group, and a monovalent heterocyclic group Or it is an amino group substituted by two substituents.
- an amino group substituted with one or two substituents is referred to as a “substituted amino group”.
- the substituent may further have a substituent.
- the substituent that the organic group further has may be referred to as “secondary substituent”.
- the number of carbon atoms of the substituted amino group is preferably 1 to 60, more preferably 2 to 48, and still more preferably 2 to 40, not including the number of carbon atoms of the secondary substituent.
- substituted amino groups include methylamino, dimethylamino, ethylamino, diethylamino, propylamino, dipropylamino, isopropylamino, diisopropylamino, butylamino, isobutylamino, sec-butylamino Group, tert-butylamino group, pentylamino group, hexylamino group, heptylamino group, octylamino group, 2-ethylhexylamino group, nonylamino group, decylamino group, 3,7-dimethyloctylamino group, dodecylamino group, cyclopentyl amino group, dicyclopentylamino group, cyclohexylamino group, dicyclohexylamino group, ditrifluoromethylamino group, phenylamino group, diphenylamino group, C
- the “silyl group” may have a substituent, preferably an unsubstituted silyl group, and one selected from an alkyl group, an aryl group, an alkyl group substituted with an aryl group, and a monovalent heterocyclic group A silyl group substituted with 3 substituents (hereinafter referred to as “substituted silyl group”).
- the substituent may have a secondary substituent.
- the number of carbon atoms of the substituted silyl group does not include the number of carbon atoms of the secondary substituent, and is preferably 1 to 60, more preferably 3 to 48, and further preferably 3 to 40.
- substituted silyl groups include trimethylsilyl, triethylsilyl, tripropylsilyl, tri-isopropylsilyl, dimethyl-isopropylsilyl, diethyl-isopropylsilyl, tert-butyldimethylsilyl, pentyldimethylsilyl, Hexyldimethylsilyl group, heptyldimethylsilyl group, octyldimethylsilyl group, 2-ethylhexyl-dimethylsilyl group, nonyldimethylsilyl group, decyldimethylsilyl group, 3,7-dimethyloctyl-dimethylsilyl group, dodecyldimethylsilyl group, phenyl -C 1-12 alkyl silyl group, C 1-12 alkoxyphenyl -C 1-12 alkylsilyl group, C 1-12 alkylphenyl
- acyl group examples include a group represented by —C ( ⁇ O) —R 111 .
- R 111 represents the alkyl group, the aryl group, or a monovalent heterocyclic group described later.
- the alkyl group, aryl group and monovalent heterocyclic group in R 111 may have a substituent.
- the number of carbon atoms of the acyl group is preferably 2 to 20, more preferably 2 to 18, and still more preferably 2 to 16, not including the number of carbon atoms of the substituent.
- acyl group examples include an acetyl group, a propionyl group, a butyryl group, an isobutyryl group, a pivaloyl group, and a benzoyl group.
- acyl group having a substituent examples include an acyl group having a halogen atom as a substituent (for example, a trifluoroacetyl group or a pentafluorobenzoyl group).
- acyloxy group examples include a group represented by —O—C ( ⁇ O) —R 112 .
- R 112 represents the alkyl group, the aryl group, or a monovalent heterocyclic group described later.
- the alkyl group, aryl group and monovalent heterocyclic group in R 112 may have a substituent.
- the number of carbon atoms of the acyloxy group is preferably 2 to 20, more preferably 2 to 18, even more preferably 2 to 16, not including the number of carbon atoms of the substituent.
- acyloxy group examples include an acetoxy group, a propionyloxy group, a butyryloxy group, an isobutyryloxy group, a pivaloyloxy group, and a benzoyloxy group.
- acyloxy group having a substituent examples include acyloxy groups having a halogen atom as a substituent (for example, a trifluoroacetyloxy group and a pentafluorobenzoyloxy group).
- Examples of the “oxycarbonyl group” include a group represented by —C ( ⁇ O) —O—R 113 .
- R 113 represents the alkyl group, the aryl group, or a monovalent heterocyclic group described later.
- the alkyl group, aryl group and monovalent heterocyclic group in R 113 may have a substituent.
- the number of carbon atoms of the oxycarbonyl group is preferably 2 to 20, more preferably 2 to 18, and still more preferably 2 to 16, excluding the number of carbon atoms of the substituent.
- the “monovalent heterocyclic group” is a remaining atomic group obtained by removing one hydrogen atom bonded to a carbon atom constituting a heterocyclic ring or an aromatic ring from a heterocyclic compound.
- the monovalent heterocyclic group may have a substituent, and the monovalent heterocyclic group includes a monocyclic group and a group having a condensed ring.
- the number of carbon atoms of the monovalent heterocyclic group is preferably 2 to 60, more preferably 4 to 30 and even more preferably 4 to 20 without including the number of carbon atoms of the substituent. It is.
- the heterocyclic compound is an organic compound having a cyclic structure, not only a carbon atom as an atom constituting the ring, but also, for example, an oxygen atom, a sulfur atom, a nitrogen atom, a phosphorus atom, a boron atom, a silicon atom, A compound containing a heteroatom such as a selenium atom, tellurium atom or arsenic atom.
- the monovalent heterocyclic group is preferably a monovalent aromatic heterocyclic group.
- the monovalent aromatic heterocyclic group is the remaining atomic group obtained by removing one hydrogen atom bonded to the aromatic heterocyclic ring or the carbon atom constituting the aromatic ring from the aromatic heterocyclic compound.
- aromatic heterocyclic compound examples include compounds in which a heterocycle containing a hetero atom itself exhibits aromaticity, that is, oxadiazole, thiadiazole, thiazole, oxazole, thiophene, pyrrole, phosphole, furan, pyridine, pyrazine, pyrimidine , Triazine, pyridazine, quinoline, isoquinoline, carbazole, dibenzophosphole, dibenzofuran, dibenzothiophene, and the like, and heterocycles containing heteroatoms themselves do not exhibit aromaticity, but the heterocycle is condensed with an aromatic ring And compounds such as phenoxazine, phenothiazine, dibenzoborol, dibenzosilol, and benzopyran.
- Examples of the monovalent aromatic heterocyclic group include thienyl group, C 1-12 alkylthienyl group, pyrrolyl group, furyl group, pyridyl group, C 1-12 alkylpyridyl group, piperidyl group, quinolyl group, isoquinolyl group and the like. Is mentioned.
- the “heterocyclic oxy group” is a group represented by —O—Ar 101 .
- Ar 101 represents the monovalent heterocyclic group.
- the monovalent heterocyclic group represented by Ar 101 may have a substituent. Unless otherwise specified, the number of carbon atoms of the heterocyclic oxy group is preferably 2 to 60, more preferably 4 to 30, and still more preferably 4 to 20, not including the number of carbon atoms of the substituent. .
- heterocyclic oxy group examples include a pyridyloxy group, a pyridazinyloxy group, a pyrimidinyloxy group, a pyrazinyloxy group, and a triazinyloxy group.
- the “heterocyclic thio group” is a group represented by —S—Ar 102 .
- Ar 102 represents the monovalent heterocyclic group.
- the monovalent heterocyclic group represented by Ar 102 may have a substituent.
- the number of carbon atoms of the heterocyclic thio group is preferably 2 to 60, more preferably 4 to 30, and still more preferably 4 to 20, not including the number of carbon atoms of the substituent. .
- heterocyclic thio group examples include a pyridylthio group, a pyridazinylthio group, a pyrimidinylthio group, a pyrazinylthio group, and a triazinylthio group.
- An “imine residue” is a hydrogen atom in the formula from an imine compound having a structure represented by the formula: H—N ⁇ C (R 114 ) 2 or a formula: H—C (R 115 ) ⁇ N—R 116 It means the residue except one.
- R 114 , R 115, and R 116 each independently represent the alkyl group, the aryl group, the alkenyl group, the alkynyl group, or the monovalent heterocyclic group.
- the alkyl group, aryl group, alkenyl group, alkynyl group and monovalent heterocyclic group in R 114 , R 115 and R 116 may have a substituent.
- a plurality of R 114 may be the same as or different from each other, and these may be linked to each other to form a ring structure together with the carbon atoms to which they are bonded.
- Examples of the imine residue include groups represented by the following structural formulas.
- the “amide compound residue” is an amide compound having a structure represented by the formula: HN (R 117 ) —C ( ⁇ O) R 118 or the formula: HC ( ⁇ O) —N (R 119 ) 2 Means a residue from which one hydrogen atom in the formula is removed.
- R 117 , R 118 and R 119 each independently represent the alkyl group, the aryl group, the alkenyl group, the alkynyl group or the monovalent heterocyclic group.
- the alkyl group, aryl group, alkenyl group, alkynyl group and monovalent heterocyclic group in R 117 , R 118 and R 119 may have a substituent.
- Two R 119 s may be the same as or different from each other, and may be connected to each other to form a ring structure together with the nitrogen atom to which they are bonded.
- amide compound residues include formamide residues, acetamide residues, propioamide residues, butyroamide residues, benzamide residues, trifluoroacetamide residues, pentafluorobenzamide residues, diformamide residues, diacetamide residues. , Dipropioamide residue, dibutyroamide residue, dibenzamide residue, ditrifluoroacetamide residue, dipentafluorobenzamide residue.
- Acid imide residue means a residue obtained by removing one hydrogen atom bonded to the nitrogen atom from an acid imide compound.
- the acid imide compound may have a substituent.
- the number of carbon atoms of the acid imide residue is preferably 4 to 20, more preferably 4 to 18, even more preferably 4 to 16, not including the carbon atoms of the substituent. .
- Examples of the acid imide residue include groups represented by the following structural formulas.
- alkyl group optionally having a substituent examples include an unsubstituted alkyl group and an alkyl group having the above substituent.
- the substituent that the alkyl group has is preferably a substituent selected from the group consisting of an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group, and a halogen atom.
- the “optionally substituted alkoxy group” examples include an unsubstituted alkoxy group and an alkoxy group having the above substituent.
- the substituent that the alkoxy group has is preferably a substituent selected from the group consisting of an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group, and a halogen atom.
- aryl group optionally having a substituent examples include an unsubstituted aryl group and an aryl group having the above substituent.
- the substituent which the aryl group has is preferably a substituent selected from the group consisting of an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group and a halogen atom.
- aryloxy group which may have a substituent examples include an unsubstituted aryloxy group and an aryloxy group having the above-described substituent.
- the substituent that the aryloxy group has is a substituent selected from the group consisting of an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group, and a halogen atom. preferable.
- Examples of “monovalent heterocyclic group which may have a substituent” include an unsubstituted heterocyclic group and a monovalent heterocyclic group having the above substituent.
- the monovalent heterocyclic group has a substituent selected from the group consisting of an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group, and a halogen atom. Preferably there is.
- arylene group optionally having a substituent examples include an unsubstituted arylene group and an arylene group having the above substituent.
- the substituent that the arylene group has is preferably a substituent selected from the group consisting of an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group, and a halogen atom.
- the “arylene group” is an atomic group remaining after removing two hydrogen atoms bonded to a carbon atom constituting an aromatic ring from an aromatic hydrocarbon.
- the arylene group includes a group having a benzene ring and a group having a condensed ring.
- the number of carbon atoms of the arylene group which may have a substituent is preferably 6 to 60, more preferably 6 to 48, not including the number of carbon atoms of the substituent, unless otherwise specified. Preferably, it is 6-30.
- the aromatic hydrocarbon include benzene, naphthalene, anthracene, phenanthrene, naphthacene, fluorene, pyrene, and perylene.
- arylene groups include phenylene groups, ie 1,4-phenylene groups, 1,3-phenylene groups, 1,2-phenylene groups, etc .; naphthalenediyl groups, ie 1,4-naphthalenediyl groups, 1,5- Naphthalenediyl group, 2,6-naphthalenediyl group, 2,7-naphthalenediyl group, etc .; anthracenediyl group, that is, 1,4-anthracenediyl group, 1,5-anthracenediyl group, 2,6-anthracenediyl group, 9 Phenanthrene diyl group, ie, 2,7-phenanthrene diyl group; naphthacene diyl group, ie, 1,7-naphthacene diyl group, 2,8-naphthacene diyl group, 5,12-naphthacene diyl group, etc .; full orangeyl Groups, ie 2,7-fluor
- divalent heterocyclic group optionally having a substituent examples include a divalent heterocyclic group having no substituent and a divalent heterocyclic group having the above substituent.
- the substituent that the divalent heterocyclic group has is a substituent selected from the group consisting of an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a heterocyclic oxy group, and a halogen atom. It is preferable that
- the “divalent heterocyclic group” is a remaining atomic group obtained by removing two hydrogen atoms bonded to a carbon atom constituting a heterocyclic ring or an aromatic ring from a heterocyclic compound.
- the divalent heterocyclic group includes a monocyclic group and a condensed ring group.
- the number of carbon atoms of the divalent heterocyclic group which may have a substituent is preferably 2 to 60, more preferably 4 to 30, excluding the number of carbon atoms of the substituent. More preferably, it is 4-20.
- the divalent heterocyclic group is preferably a divalent aromatic heterocyclic group.
- the divalent aromatic heterocyclic group is the remaining atomic group obtained by removing two hydrogen atoms bonded to the aromatic heterocyclic ring or the carbon atoms constituting the aromatic ring from the aromatic heterocyclic compound.
- divalent heterocyclic group examples include a pyridinediyl group, ie, 2,5-pyridinediyl group, 2,6-pyridinediyl group, etc .; a quinoline diyl group, ie, 2,6-quinolinediyl group, etc .; an isoquinolinediyl group, ie, 1,4-isoquinolinediyl group, 1,5-isoquinolinediyl group, etc .; quinoxalinediyl group, ie, 5,8-quinoxalinediyl group, etc .; 2,1,3-benzothiadiazole group, ie, 2,1,3-benzothiadiazole Benzothiazole diyl group, ie 4,7-benzothiazole diyl group, etc .; dibenzosilol diyl group, ie 2,7-dibenzosilol diyl group, etc .; dibenzofuranyl group, ie dibenzo
- the “crosslinkable group” is a group that exhibits crosslinkability by an external stimulus such as a crosslinking treatment, for example, a heat treatment or a light irradiation treatment.
- a crosslinking treatment for example, a heat treatment or a light irradiation treatment.
- a polymer compound of the present invention a raw material compound of the polymer compound, a composition containing the polymer compound, an organic thin film, an insolubilized thin film, a light emitting element, a planar light source and a display device, and a method for producing these are suitable.
- the embodiment will be described in detail.
- the polymer compound of the present embodiment contains 51 mol% or more of the first structural unit represented by the above formula (1) with respect to the total of all structural units, and the structural unit represented by the above formula (2) and the above It includes at least one of the structural units represented by the formula (3).
- the polymer compound of the present embodiment is preferably a conjugated polymer compound.
- the “conjugated polymer compound” is a polymer compound in which a conjugated system spreads in the main chain.
- polyarylene having an arylene group such as polyfluorene or polyphenylene as a structural unit
- polythiophene polydibenzofuran And polyheteroarylenes having a divalent heterocyclic group as a structural unit
- polyarylene vinylenes such as polyphenylene vinylene
- conjugated polymer compound refers to a triarylamine as a structural unit as long as the conjugated system extends substantially in the main chain even if it contains a hetero atom or the like in the structural unit constituting the main chain.
- derived from may be included.
- the first structural unit is a structural unit represented by the above formula (1).
- the structural unit represented by the formula (1) usually does not have a crosslinkable group.
- a is easy to synthesize a monomer as a raw material, and the light-emitting element manufactured using the polymer compound of the present embodiment has more excellent hole transportability and durability. Therefore, 1 is more preferable.
- b is easy to synthesize the monomer as a raw material, and the light-emitting element manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability. Therefore, 0 is more preferable.
- examples of the substituent include an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an aryl Alkyl groups, arylalkoxy groups, arylalkenyl groups, arylalkynyl groups, amino groups, substituted amino groups, halogen atoms, acyl groups, acyloxy groups, monovalent heterocyclic groups, carboxy groups, nitro groups, and cyano groups.
- an alkyl group an alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkoxy group, a substituted amino group, an acyl group, and a cyano group, and more preferred are an alkyl group, an alkoxy group, and an aryl group.
- the groups represented by Ar 2 and Ar 4 have a substituent because the light-emitting element produced using the polymer compound of the present embodiment is more excellent in hole transportability and durability.
- An arylene group which may be substituted is preferable, an arylene group which may have a substituent having 10 to 60 carbon atoms is more preferable, and an optionally substituted 2,7- A fluorenediyl group, an optionally substituted naphthalenediyl group, an optionally substituted phenanthrenediyl group, an optionally substituted dihydrophenanthrenediyl group, and a substituted group It is more preferably an anthracenediyl group which may be substituted, a pyrenediyl group which may have a substituent, or a perylenediyl group which may have a substituent.
- Diyl group a naphthalene-diyl group, phenanthrenediyl group, dihydro phenanthrenediyl group, anthracene-diyl group, and particularly preferably a pyrenediyl group or perylenediyl group.
- the carbon atom number of a substituent is not included in the said carbon atom number.
- the divalent group in which two or more groups, which may be the same or different from each other, selected from the group consisting of an arylene group and a divalent heterocyclic group in Ar 2 and Ar 4 are connected For example, a group represented by the following formula (1a-1), (1a-2), (1a-3), (1a-4), (1a-5), (1a-6) or (1a-7) It is preferably a group represented by the following formula (1a-1). In addition, these groups may have the said substituent.
- the groups represented by Ar 1 and Ar 3 have a substituent because the light-emitting device produced using the polymer compound of the present embodiment is more excellent in hole transportability and durability.
- An arylene group which may be present is preferable.
- examples of the arylene group in Ar 1 and Ar 3 include a 1,2-phenylene group, a 1,3-phenylene group, a 1,4-phenylene group, a 1,4-naphthalenediyl group, 2, 6-naphthalenediyl group, 2,7-naphthalenediyl group, 2,6-anthracenediyl group, 9,10-anthracenediyl group, 2,7-phenanthenediyl group, 5,12-naphthacenediyl group, 2,7-full
- An orangeyl group, a 3,6-fluorenediyl group, a 1,6-pyrenediyl group, a 2,7-pyrenediyl group, or a 3,8-perylenediyl group is preferable, and a 1,4-phenylene group, 2,7- Full orangeyl group, 2,6-anthracenediyl group, 9,10-anthracenediyl group, 2,7-phenanthrene diyl
- a divalent aromatic heterocyclic group is preferable, and it should be a 2,5-pyrrolediyl group, a dibenzofurandiyl group, a dibenzothiophenediyl group, or a 2,1,3-benzothiadiazole-4,7-diyl group. Is more preferable. In addition, these groups may have the said substituent.
- R A , R B and R C are more excellent in hole transportability and durability of a light-emitting device produced using the polymer compound of the present embodiment, and thus have an alkyl group having a substituent.
- An aryl group which may have a substituent or a monovalent heterocyclic group which may have a substituent is preferable, and an aryl group which may have a substituent is more preferable.
- An aryl group having a substituent is more preferable, and an aryl group having an alkyl group as a substituent is particularly preferable.
- the alkyl group that is R A , R B, and R C is the same as the “alkyl group” described as the substituent.
- This alkyl group is preferably a C 1-20 alkyl group.
- the said group may have the said substituent.
- the aryl group that is R A , R B and R C is the same as the “aryl group” described as the substituent.
- the aryl group is preferably a phenyl group, 1-naphthyl group, 2-naphthyl group, 1-anthracenyl group, 2-anthracenyl group, 9-anthracenyl group or 2-fluorenyl group, more preferably a phenyl group. preferable.
- these groups may have the said substituent.
- the monovalent heterocyclic group which is R A , R B and R C is the same as the “monovalent heterocyclic group” described as the substituent.
- the monovalent heterocyclic group is preferably a pyridyl group, a pyrimidyl group, a triazyl group or a quinolyl group. In addition, these groups may have the said substituent.
- the substituent is preferably an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, an aryl Alkoxy group, arylalkenyl group, arylalkynyl group, amino group, substituted amino group, halogen atom, acyl group, acyloxy group, monovalent heterocyclic group, carboxy group, nitro group, cyano group, more preferably alkyl group , An alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkoxy group, a substituted amino group, an acyl group, and a cyano group, and more preferably an alkyl group, an alkoxy group, and an aryl group.
- Ar 1 and R A connected to each other, may form a ring structure
- Ar 1 and Ar 2 are linked to each other, may form a ring structure
- Ar 2 R A may be linked to each other to form a ring structure
- Ar 2 and R B may be linked to each other to form a ring structure
- Ar 2 and Ar 3 are it may have to form a ring system with one another, may be to form a ring system with one another and Ar 3 and R B.
- Ar 1 and R A are each represented by a single bond or a group represented by —O—, —S—.
- R 120 represents an alkyl group which may have a substituent or an aryl group which may have a substituent, and when a plurality of R 120 are present, these may be different from each other.
- R 120 When these groups form a ring structure, a 5-membered ring, a 6-membered ring or a 7-membered ring is usually formed.
- the content of the first structural unit is more excellent in the hole transportability and durability of the light-emitting device produced using the polymer compound of the present embodiment, so that the content of the first structural unit is 60 mol% to 99 mol with respect to the total of all the structural units. 0.5 mol% is preferable, 70 mol% to 99 mol% is more preferable, and 80 mol% to 97 mol% is still more preferable.
- Examples of the first structural unit include structural units represented by the following formulas (1-01) to (1-27), and the formulas (1-01), (1-02), (1-04) to It is preferably a structural unit represented by (1-18), (1-20), (1-22), (1-24) to (1-27), and represented by formulas (1-01), (1- 02), (1-05) to (1-09), (1-11), (1-13) to (1-16), (1-20), (1-22), (1-25) Is more preferably a structural unit represented by formulas (1-27), and formulas (1-05), (1-07) to (1-09), (1-11), (1-13) to ( The structural unit represented by 1-16) is more preferable.
- the second structural unit is a structural unit represented by the above formula (2).
- na is preferably an integer of 0 to 2, more preferably 0 or 1, and further preferably 0, in order to facilitate the synthesis of the raw material monomer. preferable.
- nb is preferably an integer of 0 to 10, more preferably 0 to 8, because synthesis of a monomer as a raw material becomes easy.
- nA is preferably 0 because the light-emitting element produced using the polymer compound of the present embodiment is more excellent in hole transportability and durability.
- n is preferably an integer of 1 to 4, more preferably an integer of 1 to 3. More preferably.
- the number of carbon atoms of the (2 + n) -valent aromatic hydrocarbon group which may be substituted and which is Ar 5 is usually 6 to 60, preferably 6 to 48. Yes, more preferably 6-20, and even more preferably 6-14.
- the (2 + n) -valent aromatic hydrocarbon group is preferably a divalent, trivalent, tetravalent or pentavalent aromatic hydrocarbon group, and is preferably a trivalent or tetravalent aromatic hydrocarbon group. Is more preferable.
- the “(2 + n) valent aromatic hydrocarbon group” means that (2 + n) hydrogen atoms bonded to carbon atoms constituting a ring (preferably an aromatic ring) are removed from an aromatic hydrocarbon compound.
- the remaining atomic group means a group having a benzene ring and a group having a condensed ring.
- the number of carbon atoms does not include the number of carbon atoms of the substituent.
- aromatic hydrocarbon compounds examples include benzene, naphthalene, anthracene, 1-tetracene, pyrene, perylene, fluorene, benzofluorene, phenanthrene, dihydrophenanthrene, chrysene, coronene, etc., and the polymer compound of this embodiment Benzene, naphthalene, anthracene, pyrene, fluorene, benzofluorene, phenanthrene, and dihydrophenanthrene are preferable because the stability of the light emitting device and the hole transport property of the light-emitting device manufactured using the polymer compound are more excellent. , Benzene, naphthalene and fluorene are more preferred.
- the number of carbon atoms of the (2 + n) -valent heterocyclic group which may be substituted and which is Ar 5 is usually 3 to 60, preferably 3 to 20.
- the (2 + n) -valent heterocyclic group is preferably a divalent, trivalent, tetravalent or pentavalent heterocyclic group, and more preferably a divalent, trivalent or tetravalent heterocyclic group.
- the “(n + 2) -valent heterocyclic group” means a remaining atomic group obtained by removing (2 + n) hydrogen atoms bonded to a carbon atom constituting a heterocyclic ring or an aromatic ring from a heterocyclic compound. It means a monocyclic group or a group having a condensed ring. The number of carbon atoms does not include the number of carbon atoms of the substituent.
- heterocyclic compound examples include pyridine, pyrimidine, triazine, quinoline, isoquinoline, quinoxaline, dibenzofuran, dibenzothiophene, carbazole, phenoxazine, phenothiazine, benzothiadiazole, dibenzosilole and the like.
- the substituent is preferably an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkoxy group, an arylalkenyl group.
- Arylalkynyl group amino group, substituted amino group, halogen atom, acyl group, acyloxy group, monovalent heterocyclic group, carboxy group, nitro group, cyano group, more preferably alkyl group, alkoxy group, aryl group , An aryloxy group, an arylalkyl group, an arylalkoxy group, a substituted amino group, an acyl group and a cyano group, more preferably an alkyl group, an alkoxy group and an aryl group.
- Ar 5 is an aromatic carbon atom which may have a substituent since the hole transport property and durability of the light emitting device produced using the polymer compound of the present embodiment are excellent.
- a hydrogen group is preferred.
- the alkylene group represented by L a and L b may be linear, branched or cyclic, and may have a substituent. Since it is easy to synthesize a monomer as a raw material, a linear alkylene group is preferable.
- the number of carbon atoms in the linear alkylene group and the branched alkylene group is usually 1 to 20, preferably 1 to 10, and more preferably 1 to 6.
- the number of carbon atoms in the cyclic alkylene group is usually 3 to 20, preferably 3 to 10, and more preferably 3 to 6.
- the number of carbon atoms of the branched alkylene group is particularly preferably 3 to 6 without including the number of carbon atoms of the substituent unless otherwise specified.
- alkylene groups are methylene, 1,2-ethylene, 1,3-propylene, 1,3-butylene, 1,3-pentylene, 1,4-pentylene, 1,5-pentylene.
- the phenylene group represented by L a and L b may have a substituent.
- the phenylene group includes a 1,2-phenylene group, a 1,3-phenylene group, and a 1,4-phenylene group.
- Examples of the substituent that the phenylene group may have include an alkyl group, an alkoxy group, a halogen atom, and a cyano group.
- L a since the synthesis of a monomer as a raw material is facilitated, it is preferable that a phenylene group.
- L b since the synthesis of a monomer as a raw material is facilitated, is preferably an alkylene group.
- L A represents an oxygen atom or a sulfur atom, for the synthesis of a monomer as a raw material is facilitated, is preferably an oxygen atom.
- X represents a monovalent crosslinkable group.
- Examples of X include an aziridinyl group which may have a substituent, an azetidinyl group which may have a substituent, an azide group, an epoxy group which may have a substituent, and a substituent.
- An alkenyl group which may have a substituent, an alkynyl group which may have a substituent, an aryl group which may have a cyclobutene structure in the group, an aryl group which may have a substituent, a substituent which has a cyclobutene structure in the group Have A preferable monovalent heterocyclic group, an alkenyl group that may have a substituent, a cyclobutene structure in the group, an aryl group that may have a substituent, a cyclobutene structure in the group, A monovalent heterocyclic group which may have a substituent is more preferable, an alkenyl group which may have a substituent, an aryl group which has a cyclobutene structure in the group and may have a substituent Is more preferable.
- X for example, a group represented by the above formula (X-1), a group represented by (X-2), and the following formulas (X-01) to (X-19) And the synthesis of monomers as raw materials is facilitated, so that the formulas (X-1), (X-2), (X-01), (X-03), (X-04-) ), And groups represented by (X-06) to (X-18) are preferable, and groups represented by formulas (X-1), (X-2), (X-09) to (X-18) are more preferable.
- the groups represented by formulas (X-1) and (X-2) are more preferable.
- Examples of the substituent in the formula (X-1) include an alkyl group which may have a substituent, an alkoxy group which may have a substituent, and an alkylthio group which may have a substituent.
- R X has a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, or a substituent.
- An alkylthio group which may have a substituent, an aryl group which may have a substituent, an aryloxy group which may have a substituent, an arylthio group which may have a substituent, and a substituent. May have an amino group, an optionally substituted silyl group, a halogen atom, an acyl group, an acyloxy group, an imine residue, a carbamoyl group, an acid imide group, and a monovalent complex that may have a substituent.
- a cyclic group, a carboxy group, a cyano group or a nitro group which may have a substituent is represented.
- a plurality of R X may be the same or different.
- RN has a hydrogen atom, an alkyl group which may have a substituent, an acyl group which may have a substituent, an aryl group which may have a substituent, or a substituent. Represents a monovalent heterocyclic group.
- R X has a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, and a substituent because synthesis of a monomer as a raw material becomes easy.
- An aryloxy group which may have a substituent, an aryloxy group which may have a substituent, and a monovalent heterocyclic group which may have a substituent are preferable, and a hydrogen atom or a substituent may be present.
- a preferable alkyl group, an alkoxy group which may have a substituent, and an aryl group which may have a substituent are more preferable.
- Examples of the formula (X-1) include the following formula (X-1-1) and formula (X-1-2), which facilitates the synthesis of the monomer as a raw material. -1-1) is preferred.
- R Y is a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, a substituent
- An alkylthio group which may have a group, an aryl group which may have a substituent, an aryloxy group which may have a substituent, an arylthio group which may have a substituent, a substituent
- a monovalent heterocyclic group, a carboxy group optionally having a substituent, a cyano group or a nitro group is represented.
- a plurality of R Y may be the same or different.
- RY has a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, and a substituent because synthesis of the monomer as a raw material becomes easy.
- “*” represents a bond.
- ne represents 0 or 1, and is preferably 0 because the light-emitting device manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability. .
- nf represents 0 or 1, and is preferably 0 because it facilitates the synthesis of the raw material monomer.
- L X1 represents an oxygen atom, a sulfur atom, a carbonyl group or a group represented by —O—CO—, which facilitates the synthesis of the starting monomer, A group represented by —O—CO— is preferable.
- R 4 , R 5 , R 6 , R 7 , and R 8 are more excellent in hole transportability and durability of the light-emitting device manufactured using the polymer compound of this embodiment. Therefore, a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a halogen atom or a cyano group is preferable, and a hydrogen atom, an alkyl group or a fluorine atom is more preferable. And more preferably a hydrogen atom.
- the structural unit represented by the formula (2) since the hole transport property and durability of the light emitting device produced using the polymer compound of the present embodiment are more excellent, the structural unit represented by the above formula (4) Is preferred.
- nc is preferably an integer of 0 to 2, more preferably 0 or 1, and is preferably 0 because synthesis of a monomer as a raw material is facilitated. Further preferred.
- nd is preferably an integer of 0 to 10, more preferably an integer of 0 to 8, because synthesis of a monomer as a raw material becomes easy.
- nB is more preferably 0 because the light-emitting element produced using the polymer compound of the present embodiment is more excellent in hole transportability and durability.
- m is a hole-transport property and durability of a light-emitting device manufactured using the polymer compound of the present embodiment, and an organic thin film containing the polymer compound is insolubilized. From the viewpoint of conversion to 1, it is preferably 1 or 2, and more preferably 2.
- the alkylene group represented by L c and L d may be linear, branched or cyclic, and may have a substituent. Since it is easy to synthesize a monomer as a raw material, a linear alkylene group is preferable.
- the number of carbon atoms in the linear alkylene group and the branched alkylene group is usually 1 to 20, preferably 1 to 10, and more preferably 1 to 6.
- the number of carbon atoms in the cyclic alkylene group is usually 3 to 20, preferably 3 to 10, and more preferably 3 to 6.
- the number of carbon atoms of the branched alkylene group is particularly preferably 3 to 6 without including the number of carbon atoms of the substituent unless otherwise specified.
- alkylene groups are methylene, 1,2-ethylene, 1,3-propylene, 1,3-butylene, 1,3-pentylene, 1,4-pentylene, 1,5-pentylene.
- the phenylene group represented by L c and L d may have a substituent.
- the phenylene group may be any of 1,2-phenylene group, 1,3-phenylene group, and 1,4-phenylene group.
- Examples of the substituent that the phenylene group may have include an alkyl group, an alkoxy group, a halogen atom, and a cyano group.
- L c is preferably a phenylene group because it facilitates the synthesis of the raw material monomer.
- L d is preferably an alkylene group because it facilitates the synthesis of the monomer as a raw material.
- L B because the synthesis of a monomer as a raw material is facilitated, is preferably an oxygen atom.
- X represents the same meaning as X in Formula (2) above, and is the same as the examples and preferred ranges in Formula (2).
- R 3 represents an alkyl group or a substituent which may have a substituent since the hole transport property and durability of the light emitting device using the polymer compound of the present embodiment are more excellent. It is preferably an aryl group which may have, more preferably an aryl group which may have a substituent, and further preferably an aryl group substituted with an alkyl group.
- the fluorene ring may have a substituent, and the substituent is preferably an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkoxy group, an arylalkenyl group.
- Arylalkynyl group amino group, substituted amino group, halogen atom, acyl group, acyloxy group, monovalent heterocyclic group, carboxy group, nitro group or cyano group, more preferably alkyl group, alkoxy group, aryl group , An aryloxy group, an arylalkyl group, an arylalkoxy group, a substituted amino group, an acyl group and a cyano group, more preferably an alkyl group, an alkoxy group and an aryl group.
- Formulas (2-01) to (2-04), (2-06), (2-07) , (2-09), (2-10), (2-14), (2-17), (2-18), (2-21) to (2-25), (2-27), ( 2-29) to (2-40) are more preferred, and the structural units represented by formulas (2-02), (2-03), (2-06), (2-09), (2-10), (2-23) to (2-25) (2-27), (2-29) - particularly preferably a structural unit represented by (2-40).
- n ⁇ 1 structural units represented by the following formulas (2-101) to (2-139) are preferable, and the formulas (2-101), (2-107) ), (2-109) to (2-112), (2-118), and (2-125) to (2-136) are more preferred. 107), (2-110), (2-112), (2-125), (2-127), (2-129), (2-130), (2-133) to (2-136)
- the structural unit represented by formula (2-101), (2-110), (2-112), (2-125), (2-127), (2-129), (2-133) is more preferred.
- (2-135) are particularly preferred.
- the wavy line means that the arrangement of the bonding group may be either E type or Z type.
- the light-emitting element manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability.
- the content is preferably 0.5 mol% to 40 mol%, more preferably 1 mol% to 30 mol%, still more preferably 5 mol% to 20 mol%, based on the total of the structural units.
- the content of the second structural unit is more excellent in the hole transportability and durability of the light emitting device produced using the polymer compound of the present embodiment when n ⁇ 1 in the formula (2), and Since it is excellent in crosslinkability, it is preferably from 0.5 mol% to 40 mol%, more preferably from 3 mol% to 30 mol%, more preferably from 3 mol% to 20 mol%, based on the total of all structural units. More preferably.
- the polymer compound of the present embodiment may have only one type of the above-described structural unit as the second structural unit, or may have two or more different structural units among the above-described structural units. Also good. From the viewpoint of converting an organic thin film into an insolubilized organic thin film, it contains at least one monovalent crosslinkable group represented by the above formula (X-1), and monovalent crosslinks represented by the above formula (X-2). It is preferable that at least one kind of functional group is contained, and at least one kind of monovalent crosslinkable group represented by the above formula (X-1) and the above formula (X-2) is contained. It is more preferable that at least one monovalent crosslinkable group represented by -1) and the above formula (X-2) is included.
- the third structural unit is a structural unit represented by the above formula (3).
- c is easy to synthesize a monomer as a raw material, and has a more excellent hole transport property and durability of a light emitting device produced using the polymer compound of the present embodiment. Therefore, 0 is preferable.
- the group represented by Ar 6 , Ar 7 and Ar 8 is an arylene group which may have a substituent, and light emission produced using the polymer compound of this embodiment This is preferable because the hole transport property and durability of the device are more excellent.
- examples of the arylene group in Ar 6 , Ar 7 and Ar 8 include a 1,2-phenylene group, a 1,3-phenylene group, a 1,4-phenylene group, and a 1,4-naphthalenediyl group.
- 2,6-naphthalenediyl group, 2,7-naphthalenediyl group, 2,6-anthracenediyl group, 9,10-anthracenediyl group, 2,7-phenanthenediyl group, 5,12-naphthacenediyl group, 2, 7-full orangeyl group, 3,6-fluorenediyl group, 1,6-pyrene diyl group, 2,7-pyrene diyl group and 3,8-perylene diyl group can be selected, 1,4-phenylene group, 2,7-fluorenediyl group, 2,6-anthracenediyl group, 9,10-anthracenediyl group, 2,7-phenanthrenediyl group and 1,6 A -pyrene diyl group is preferred, and a 1,4-phenylene group is more preferred. These may have the above substituents.
- examples of the divalent heterocyclic group in Ar 6 , Ar 7 , and Ar 8 include a 2,5-pyrroldiyl group, a dibenzofurandiyl group, a dibenzothiophenediyl group, and a 2,1,3-benzoic group.
- Thiadiazole-4,7-diyl groups can be selected and these may have the above substituents.
- examples of the divalent group in which two or more groups which may be the same or different and selected from the group consisting of an arylene group and a divalent heterocyclic group in Ar 7 are linked include, for example, the above formulas A group represented by (1a-1), (1a-2), (1a-3), (1a-4), (1a-5), (1a-6) or (1a-7) is preferred. And more preferably a group represented by the above formula (1a-1). In addition, these groups may have the said substituent.
- examples of the substituent include an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, and an arylalkoxy group.
- examples of the monovalent crosslinkable group represented by R 1 and R 2 include the above formulas (X-1), (X-2), (X-01) to (X-18)
- the light-emitting device produced using the polymer compound of the present embodiment is more excellent in hole transportability and durability, and therefore has the formula (X-1), (X-2), ( X-01), (X-03), (X-04), and groups represented by (X-06) to (X-18) are preferred, and are represented by the formulas (X-1), (X-2), (X -07) to (X-18) are more preferable, and a group represented by the formula (X-1) is more preferable.
- the alkyl group which may have a substituent represented by R 2 is the same as the “alkyl group” described as the substituent, and is preferably a C 1-20 alkyl group. .
- the aryl group which may have a substituent represented by R 2 is the same as the “aryl group” described as the substituent, and is preferably a phenyl group, a 1-naphthyl group, 2-naphthyl group, 1-anthracenyl group, 2-anthracenyl group, 9-anthracenyl group or 2-fluorenyl group.
- the monovalent heterocyclic group which may have a substituent represented by R 2 is the same as the “monovalent heterocyclic group” described as the substituent, and preferably, Pyridyl group, pyrimidyl group, triazyl group or quinolyl group.
- R 2 is preferably the same monovalent crosslinkable group as R 1 because synthesis of a monomer as a raw material becomes easy.
- the substituent is preferably an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkoxy group, an arylalkenyl group.
- Arylalkynyl group amino group, substituted amino group, halogen atom, acyl group, acyloxy group, monovalent heterocyclic group, carboxy group, nitro group, cyano group, more preferably alkyl group, alkoxy group, aryl group , An aryloxy group, an arylalkyl group, an arylalkoxy group, a substituted amino group, an acyl group and a cyano group, more preferably an alkyl group, an alkoxy group and an aryl group.
- Examples of the third structural unit include structural units represented by the formulas (3-01) to (3-05), and include the formulas (3-01), (3-02), (3-04) or ( The structural unit represented by 3-05) is preferred, the structural unit represented by formula (3-01) or (3-02) is more preferred, and the structural unit represented by formula (3-01) is more preferred.
- the content of the third structural unit is more excellent in hole transportability and durability of the light-emitting element produced using the polymer compound of the present embodiment, and is excellent in crosslinkability. On the other hand, it is preferably from 0.5 mol% to 40 mol%, more preferably from 3 mol% to 30 mol%, still more preferably from 3 mol% to 20 mol%.
- the polymer compound of the present embodiment may have only one type of the above-described structural unit as the third structural unit, or may have two or more different types of structural units among the above-described structural units. Good.
- the polymer compound of the present embodiment may contain a second structural unit and a third structural unit.
- the total content is more excellent in hole transportability and durability of the light-emitting element produced using the polymer compound of the present embodiment, and Since the crosslinkability is excellent, the content is preferably 0.5 mol% to 40 mol%, more preferably 3 mol% to 30 mol%, based on the total of all the structural units.
- the polymer compound of this embodiment contains 51 mol% or more of the first structural unit represented by the above formula (1) with respect to the total of all the structural units, and the second structural unit represented by the above formula (2). And a polymer compound containing at least one of the third structural units represented by the formula (3). Since the polymer compound of the present embodiment is more excellent in crosslinkability, it is composed of the first structural unit and the second structural unit, or is composed of the first structural unit, the second structural unit, and the third structural unit. It is preferable that the first structural unit and the second structural unit are used.
- the polymer compound of the present embodiment includes, for example, a monomer (1) for introducing a structural unit represented by the above formula (1), and a monomer (A) for introducing a structural unit different from the structural unit. It is synthesized by condensation polymerization.
- Examples of the monomer (1) include a compound represented by the following formula (5) and a compound represented by the formula (6).
- Examples of the monomer (A) include a compound represented by the following formula (2M) and a compound represented by the formula (3M).
- the terminal group is preferably a stable group (for example, an aryl group, a monovalent heterocyclic group (particularly a monovalent aromatic heterocyclic group)).
- the polymer compound of the present embodiment is a copolymer
- it may be any copolymer, such as a block copolymer, a random copolymer, an alternating copolymer, or a graft copolymer. There may be.
- the polymer compound of the present embodiment is useful as a hole transporting material or the like, and may be used in combination with other compounds as a composition described later.
- the number average molecular weight (Mn) in terms of polystyrene by gel permeation chromatography (hereinafter referred to as “GPC”) of the polymer compound of the present embodiment is usually 1 ⁇ 10 3 to 1 ⁇ 10 8 , preferably 1 ⁇ 10 4 to 5 ⁇ 10 6 .
- the polystyrene equivalent weight average molecular weight (Mw) of the polymer compound of the present embodiment is usually 1 ⁇ 10 3 to 1 ⁇ 10 8 , the film formability is improved, and the polymer compound is used. Since the luminance life of the light emitting device manufactured in this way is more excellent, it is preferably 5 ⁇ 10 3 to 1 ⁇ 10 7 .
- the glass transition temperature of the polymer compound of this embodiment is preferably 70 ° C. or higher. .
- the polymer compound of this embodiment can also be used as a light-emitting thin film material that emits fluorescence or phosphorescence.
- the light emitting device using the polymer compound of the present embodiment is a high performance light emitting device excellent in hole transportability and durability. Therefore, the light-emitting element is useful for a backlight of a liquid crystal display device, a curved or planar light source for illumination, a segment display device, a dot matrix display device, and the like.
- the polymer compound of the present embodiment can be used not only for light emitting devices but also for electronic devices such as organic solar cells and organic transistors. Laser pigment materials, organic solar cell materials, organic semiconductor materials for organic transistors It can also be used as a conductive thin film material, an organic semiconductor thin film material, and the like.
- Ar 5 , X, L a , L b , L A , na, nb, nA and n are as defined in formula (2) above, and Z 5 and Z 6 are each independently Are groups selected from the above-mentioned substituent group A or substituent group B.
- the compound having a group selected from Substituent Group A and the compound having a group selected from Substituent Group B are condensed by a known coupling reaction and bonded to a group selected from Substituent Group A. It is known that a carbon atom and a carbon atom bonded to a group selected from the substituent group B are bonded. Therefore, if the compound A having two groups selected from the substituent group A and the compound B having two groups selected from the substituent group B are subjected to a known coupling reaction, a condensation polymerization reaction is performed. A condensation polymer of Compound A and Compound B can be obtained.
- the first structural unit is introduced by the compound 5 and the compound 6, the second structural unit is introduced by the compound 2M, and the third structural unit is introduced by the compound 3M.
- condensation polymerization method examples include a polymerization method by Suzuki coupling reaction (Chem. Rev, 95, 2457-2483 (1995)), and a polymerization method by Grignard reaction (Bull. Chem. Soc. Jpn. 51, 2091 (1978)), polymerization method using Ni (0) catalyst (Progress in Polymer Science, 17, 173-1205, 1992), method using Stille coupling reaction (European Polymer Journal, Vol. 41, pages 2923-2933 (2005)).
- the method of polymerizing by Suzuki coupling reaction and the method of polymerizing by Ni (0) catalyst are preferable, and the structure control of the polymer compound is easy.
- a method of polymerizing by an aryl-aryl cross-coupling reaction such as a Suzuki coupling reaction, a Grignard reaction, or a Stille coupling reaction is more preferable, and a reaction by polymerization by a Suzuki coupling reaction is particularly preferable.
- condensation polymerization method examples include a method in which each of the above compounds is reacted with an appropriate catalyst or base as necessary.
- the total number of moles of groups selected from the substituent group A possessed by each compound, and the substituent group B The ratio with the total number of moles of the group selected from the above may be adjusted.
- the ratio of the latter mole number to the former mole number is preferably 0.95 to 1.05, more preferably 0.98 to 1.02, and 0.99 to 1.01. More preferably.
- the amount of compound 5 used in the condensation polymerization reaction is preferably 1 mol% to 50 mol%, preferably 5 mol% to 50 mol%, based on the total molar amount of compound 5, compound 6 and other monomers. More preferred is 10 mol% to 50 mol%.
- the amount of compound 6 used is preferably 1 mol% to 50 mol%, preferably 10 mol% to 50 mol%, based on the total molar amount of compound 5, compound 6 and other monomers. More preferably, it is 30 mol% to 50 mol%.
- -40 mol% preferably 1 mol% to 30 mol%, more preferably 5 mol% to 30 mol%, particularly preferably 5 mol% to 20 mol%. preferable.
- the amount used is preferably 0.5 mol% to 40 mol% with respect to the total molar amount of compound 3M and other monomers, and preferably 3 mol % To 30 mol% is more preferable, 3 mol% to 20 mol% is more preferable, and 5 mol% to 20 mol% is particularly preferable. According to such a condensation polymerization reaction, the polymer compound of the present embodiment can be produced.
- the monomer may be synthesized and isolated in advance, or synthesized in a reaction system and used as it is.
- the purity may affect the performance of the electronic device. Therefore, these monomers are preferably purified by a method such as distillation, chromatography, sublimation purification, recrystallization or a combination thereof.
- a catalyst when polymerizing by a Suzuki coupling reaction, transition metals such as palladium complexes such as palladium [tetrakis (triphenylphosphine)], [tris (dibenzylideneacetone)] dipalladium, palladium acetate, dichlorobistriphenylphosphine palladium, etc.
- transition metals such as palladium complexes such as palladium [tetrakis (triphenylphosphine)], [tris (dibenzylideneacetone)] dipalladium, palladium acetate, dichlorobistriphenylphosphine palladium, etc.
- complexes, and complexes in which ligands such as triphenylphosphine, tri-tert-butylphosphine, and tricyclohexylphosphine are coordinated to these transition metal complexes.
- the Ni (0) catalyst may be nickel [tetrakis (triphenylphosphine)], [1,3-bis (diphenylphosphino) propane] dichloronickel, [bis (1,4 -Cyclooctadiene)] transition metal complexes such as nickel complexes such as nickel, and these transition metal complexes have triphenylphosphine, tri-tert-butylphosphine, tricyclohexylphosphine, diphenylphosphinopropane, substituents And a complex in which a ligand such as bipyridyl which may be substituted or phenanthroline which may have a substituent is coordinated.
- a ligand such as bipyridyl which may be substituted or phenanthroline which may have a substituent is coordinated.
- the above-mentioned catalyst may be synthesized in advance or used in a reaction system and used as it is. Moreover, these catalysts may be used individually by 1 type, or may use 2 or more types together.
- the amount of the catalyst used may be an effective amount as a catalyst.
- it is usually 0.0001 mol% to 300 mol in terms of the number of moles of transition metal with respect to 100 mol% of all monomers in the polymerization reaction.
- % Preferably 0.001 mol% to 50 mol%, more preferably 0.01 mol% to 20 mol%.
- bases include inorganic bases such as sodium carbonate, potassium carbonate, cesium carbonate, potassium fluoride, cesium fluoride, tripotassium phosphate, tetrabutylammonium fluoride, tetrabutylammonium chloride, tetrabutylammonium bromide, water
- organic bases such as tetraethylammonium oxide and tetrabutylammonium hydroxide.
- the amount of the base used is usually 50 mol% to 2000 mol%, preferably 100 mol% to 1000 mol%, based on 100 mol% of the total monomers in the polymerization reaction.
- the polymerization reaction may be performed in the absence of a solvent or in the presence of a solvent.
- the polymerization reaction is usually performed in the presence of an organic solvent.
- the organic solvent include toluene, xylene, mesitylene, tetrahydrofuran, 1,4-dioxane, dimethoxyethane, N, N-dimethylacetamide, N, N-dimethylformamide and the like.
- An organic solvent may be used individually by 1 type, or may use 2 or more types together.
- the amount of the organic solvent used is preferably such that the total concentration of all monomers in the polymerization reaction is 0.1% to 90% by weight, and preferably 1% to 50% by weight. Is more preferable, and the amount is more preferably 2 to 30% by weight.
- the reaction temperature of the polymerization reaction is preferably ⁇ 100 ° C. to 200 ° C., more preferably ⁇ 80 ° C. to 150 ° C., and further preferably 0 ° C. to 120 ° C.
- the reaction time is usually 1 hour or longer, preferably 2 to 500 hours.
- a compound represented by the following formula (1T) is used as a polymerization terminator in order to avoid leaving a polymerizable group (for example, Z 1 , Z 2 ) at the terminal of the polymer compound of the present embodiment. It may be used.
- a polymer compound whose terminal is an aryl group or a monovalent heterocyclic group (particularly a monovalent aromatic heterocyclic group) can be obtained.
- Ar T represents an optionally substituted aryl group or an optionally substituted monovalent heterocyclic group (particularly a monovalent aromatic heterocyclic group).
- Z T represents a group selected from the group consisting of the substituent group A and the substituent group B.
- the aryl group and monovalent heterocyclic group (particularly monovalent aromatic heterocyclic group) in Ar T are the same as the “aryl group” and “monovalent heterocyclic group” described above as the substituent, Since the durability of the light emitting device produced using the polymer compound of the present embodiment is more excellent, an aryl group is preferable, and a phenyl group, 1-naphthyl group, 2-naphthyl group, 1-anthracenyl group, 2-anthracenyl group are preferable. 9-anthracenyl group or 2-fluorenyl group is more preferable, and phenyl group is more preferable. In addition, these groups may have the said substituent.
- the post-treatment of the polymerization reaction can be performed by a known method, for example, a method of removing water-soluble impurities by liquid separation, or a precipitate precipitated by adding the reaction solution after the polymerization reaction to a lower alcohol such as methanol.
- the method of filtering and drying can be carried out alone or in combination.
- the polymer compound of this embodiment may be purified by ordinary methods such as recrystallization, reprecipitation, continuous extraction with a Soxhlet extractor, column chromatography, etc.
- the purity of the light-emitting element may affect the performance of the light-emitting element, such as the light-emitting characteristics. Therefore, it is preferable to perform purification treatment such as reprecipitation purification and fractionation by chromatography after condensation polymerization.
- the compound of the present embodiment is a compound represented by the above formula (5) useful for the production of the above polymer compound.
- d is easy to synthesize the monomer as a raw material, and the light-emitting device manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability. Therefore, 1 is more preferable.
- e is easy to synthesize the monomer as a raw material, and the light-emitting device manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability. Therefore, 0 is preferable.
- the substituent when the group represented by Ar 9 , Ar 10 , Ar 11 and Ar 12 has a substituent, the substituent includes Ar 1 , Ar 2 , Ar 3 and Ar 4 in the above (1). It is the same as the substituent that the group represented by
- examples and preferred ranges of the groups represented by R D, R E and R F is, for R D are the same as R A in formula (1), identical to R B for R E And R F is the same as R C.
- a compound represented by the following formula (5-1-2) which is a compound defined by the formula (5) can be produced, for example, by the method of the following scheme 1.
- the compound of the present embodiment is a compound represented by the above formula (6), which is useful for the production of the polymer compound of the present embodiment.
- f is easy to synthesize the monomer as a raw material, and the light-emitting element manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability. Therefore, 0 or 1 is preferable, and 1 is more preferable.
- g is easy to synthesize a monomer as a raw material, and the light-emitting device manufactured using the polymer compound of the present embodiment is more excellent in hole transportability and durability. Therefore, 0 is preferable.
- examples and preferred ranges of Ar 14 and Ar 16 are the same as Ar 2 and Ar 4 in Formula (1).
- examples and preferred ranges of the groups represented by R G , R H and R I are the same as R A in the formula (1) for R G and the same as R B for R H And R I is the same as R C.
- the polymer compound of this embodiment When the polymer compound of this embodiment has a monovalent crosslinkable group, it can be a polymer compound in which a carbon cluster and a monovalent crosslinkable group are bonded. Such a polymer compound can be synthesized, for example, by reacting them in a solvent by Diels-Alder reaction or the like and performing a purification treatment.
- the light emitting device manufactured using the polymer compound of the present embodiment thus obtained has excellent hole transportability and excellent luminance life.
- the “carbon cluster” means a molecule whose minimum structure is composed of several to several thousand carbon atoms.
- fullerene having a spherical shell structure, a cylindrical carbon nanotube, a carbon nanohorn, and the like can be given.
- the carbon cluster preferably has a structure containing fullerene. Further, as the fullerene, C 60 fullerene, C 70 fullerene and C 84 fullerene are preferable, and C 60 fullerene is more preferable.
- the polymer compound bonded to the carbon cluster of the present embodiment is preferably a polymer compound having a structural unit represented by the above formula (1) and a structural unit represented by the above formula (2).
- a polymer compound having the structural unit shown and the structural unit represented by the above formula (4) is more preferable.
- n is preferably 1 to 4, more preferably an integer of 1 to 3, and further preferably 2.
- m is 1 or 2, and it is more preferable that it is 2.
- the monovalent crosslinkable group that reacts with the carbon cluster is not particularly limited as long as it is a crosslinkable group that reacts with the carbon cluster.
- a group represented by the above formula (X-1) and the above formula (X-2) can be used as long as the polymer compound and the carbon cluster are bonded by a Diels-Alder reaction. ) Is preferred.
- Examples of the structural unit in which a carbon cluster and a monovalent crosslinkable group are capable of constituting a polymer compound bonded to a carbon cluster include the following formulas (6A-1), (6A-2), (6A-3) ), (6A-4), (6A-5), (6A-6), (6A-7), (6A-8), (6A-9), (6A-10) and (6A-11) The structural unit shown is mentioned.
- composition contains the polymer compound and at least one material selected from the group consisting of a hole transporting material, an electron transporting material, and a light emitting material.
- Examples of hole transporting materials include polyvinylcarbazole and derivatives thereof, polysilane and derivatives thereof, polysiloxane derivatives having aromatic amine residues in the side chain or main chain, pyrazoline derivatives, arylamine derivatives, stilbene derivatives, polyanilines and Examples thereof include polythiophene and derivatives thereof, polypyrrole and derivatives thereof, poly (p-phenylene vinylene) and derivatives thereof, poly (2,5-thienylene vinylene) and derivatives thereof, and the like.
- Other examples of the hole transporting material include JP-A-63-70257, JP-A-63-175860, JP-A-2-135359, JP-A-2-135361, JP-A-2-135361. Examples thereof include hole transporting materials described in JP-A-2-209988, JP-A-3-37992, and JP-A-3-152184.
- the content of the hole transporting material is preferably 1 part by weight to 500 parts by weight, and more preferably 5 parts by weight to 200 parts by weight with respect to 100 parts by weight of the polymer compound in the composition.
- electron transport materials include oxadiazole derivatives, anthraquinodimethane and its derivatives, benzoquinone and its derivatives, naphthoquinone and its derivatives, anthraquinone and its derivatives, tetracyanoanthraquinodimethane and its derivatives, fluorenone derivatives, Diphenyldicyanoethylene and its derivatives, diphenoquinone derivatives, metal complexes of 8-hydroxyquinoline and its derivatives, polyquinoline and its derivatives, polyquinoxaline and its derivatives, polyfluorene and its derivatives, anthracene and its derivatives, co-weight of anthracene and fluorene Examples include coalescence.
- electron transporting material examples include JP-A-63-70257, JP-A-63-175860, JP-A-2-135359, JP-A-2-135361, and JP-A-2. Examples thereof include electron transporting materials described in JP-A Nos. 209988, 3-37992, and 3-152184.
- the content of the electron transporting material is preferably 1 part by weight to 500 parts by weight, and more preferably 5 parts by weight to 200 parts by weight with respect to 100 parts by weight of the polymer compound in the composition.
- Examples of the light emitting material include a low molecular fluorescent light emitting material and a phosphorescent light emitting material.
- Examples of luminescent materials include naphthalene derivatives, anthracene and derivatives thereof, copolymers of anthracene and fluorene, perylene and derivatives thereof, polymethine dyes, xanthene dyes, coumarin dyes, cyanine dyes and other dyes, and 8-hydroxyquinoline.
- triplet light-emitting complexes examples include Ir (ppy) 3 , Btp 2 Ir (acac), FIrpic, COM-1, COM-2, COM-3, COM-4, COM-5, which have iridium as a central metal, COM-6, COM-7, COM-8, iridium complexes such as ADS066GE commercially available from American Dye Source, platinum complexes such as PtOEP with platinum as the central metal, Eu (TTA) with europium as the central metal 3 Examples include europium complexes such as phen. These triplet light emitting complexes are represented by the following chemical formulas.
- the content of the luminescent material is preferably 1 part by weight to 500 parts by weight, and more preferably 5 parts by weight to 200 parts by weight with respect to 100 parts by weight of the polymer compound in the composition.
- the polymer compound of the present embodiment may be a composition (hereinafter sometimes referred to as a liquid composition) dissolved or dispersed in a solvent, preferably an organic solvent. Such a liquid composition is also called ink or varnish.
- a liquid composition is also called ink or varnish.
- the liquid composition is preferably a solution in which the polymer compound of the present embodiment is dissolved in a solvent.
- the liquid composition may contain at least one material selected from the group consisting of a hole transport material, an electron transport material, and a light emitting material (that is, the above-described material).
- a hole transport material an electron transport material
- a light emitting material that is, the above-described material.
- other substances may be added to the liquid composition as long as the effects of the present invention are not hindered. Examples of other substances include an antioxidant, a viscosity modifier, a surfactant, and a crosslinking initiator.
- the organic solvent used in the liquid composition is not particularly limited as long as the polymer compound of the present embodiment is dissolved or dispersed.
- Examples of the organic solvent include the following organic solvents (hereinafter sometimes referred to as “organic solvent group”).
- Aromatic hydrocarbon solvent toluene, xylene (isomers or mixtures thereof), 1,2,3-trimethylbenzene, 1,2,4-trimethylbenzene, mesitylene (1,3,5-trimethylbenzene), ethylbenzene , Propylbenzene, isopropylbenzene, butylbenzene, isobutylbenzene, 2-phenylbutane, tert-butylbenzene, pentylbenzene, neopentylbenzene, isopentylbenzene, hexylbenzene, cyclohexylbenzene, heptylbenzene, octylbenzene, 3-propyltoluene 4-propyltoluene, 1-methyl-4-propylbenzene, 1,4-diethylbenzene, 1,4-dipropylbenzene, 1,4-di-tert-butylbenzen
- Aliphatic hydrocarbon solvent pentane, hexane, cyclohexane, methylcyclohexane, heptane, octane, nonane, decane, decalin, etc.
- Aromatic ether solvents anisole, ethoxybenzene, propoxybenzene, butyroxybenzene, pentyloxybenzene, cyclopentyloxybenzene, hexyloxybenzene, cyclohexyloxybenzene, heptyloxybenzene, octyloxybenzene, 2-methylanisole, 3-methylanisole 4-methylanisole, 4-ethylanisole, 4-propylanisole, 4-butylanisole, 4-pentylanisole, 4-hexylanisole, diphenylether, 4-methylphenoxybenzene, 4-ethylphenoxybenzene, 4-propylphenoxybenzene 4-butylphenoxybenzene, 4-pentylphenoxybenzene, 4-hexylphenoxybenzene, 4-phenoxytoluene, 3-phenyl Nokishitoruen, 1,3-dimethoxybenzene, 2,6-dimethyl anisole, 2,
- Aliphatic ether solvents tetrahydrofuran, dioxane, dioxolane and the like.
- Ketone solvent acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, acetophenone, etc.
- Ester solvent ethyl acetate, butyl acetate, methyl benzoate, ethyl cellosolve acetate, etc.
- Chloride solvent methylene chloride, chloroform, 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene, o-dichlorobenzene and the like.
- Alcohol solvent methanol, ethanol, propanol, isopropanol, cyclohexanol, phenol, etc.
- Polyhydric alcohol and its derivatives ethylene glycol, ethylene glycol monobutyl ether, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, dimethoxyethane, propylene glycol, diethoxymethane, triethylene glycol monoethyl ether, glycerin, 1,2-hexane Diol etc.
- Aprotic polar solvents dimethyl sulfoxide, N-methyl-2-pyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide and the like.
- organic solvents may be used alone or as a mixed organic solvent in which two or more are mixed. When used as a mixed organic solvent, it is preferable to combine two or more organic solvents in the above organic solvent group.
- a mixed organic solvent a plurality of types of organic solvents may be combined from the same group of organic solvents exemplified above, or one or more types may be combined from different groups of organic solvents.
- the composition ratio can be determined in consideration of the physical properties of each organic solvent and the solubility of a polymer compound or the like.
- Preferred examples of selecting and combining a plurality of types from the same organic solvent group include a combination of selecting a plurality of types from an aromatic hydrocarbon solvent and a combination of selecting a plurality of types from an aromatic ether solvent.
- Preferable examples in the case of selecting and combining one or more kinds from different organic solvent groups include the following combinations.
- water can be further added to a single organic solvent or a mixed organic solvent using the organic solvent exemplified above alone.
- a single organic solvent or a mixed organic solvent including one or more organic solvents having a structure containing a benzene ring, a melting point of 0 ° C. or lower, and a boiling point of 100 ° C. or higher is obtained from the viscosity and Since the film formability is good, it is preferable, and among them, a single solvent or a mixed solvent containing one or more aromatic hydrocarbon solvents and aromatic ether solvents is particularly preferable.
- organic solvent a single organic solvent or a mixed organic solvent may be used.
- organic solvent it is preferable to use a mixed organic solvent because the film formability can be controlled.
- the organic solvent may be used after purification by treatment such as washing, distillation, contact with an adsorbent, etc., if necessary.
- the organic thin film containing the high molecular compound of this embodiment can be manufactured easily.
- the liquid composition is applied to a substrate on which any appropriate predetermined component may be provided, and the organic solvent is distilled off by a process such as heating, air blowing, or decompression, thereby implementing this embodiment.
- An organic thin film containing the polymer compound in the form is obtained.
- the conditions for distilling off the organic solvent can be changed depending on the organic solvent to be used. For example, the atmospheric temperature of 50 ° C. to 150 ° C. (heat treatment conditions) or a reduced pressure atmosphere of about 10 ⁇ 3 Pa is required. As mentioned.
- spin coating method for the coating process, spin coating method, casting method, micro gravure method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method, slit coating method, capillary coating method, spray coating method, screen Coating methods such as a printing method, a flexographic printing method, an offset printing method, an ink jet printing method, and a nozzle coating method can be used.
- the suitable viscosity of the liquid composition varies depending on the coating method selected, and is preferably 0.5 mPa ⁇ s to 1000 mPa ⁇ s, more preferably 0.5 mPa ⁇ s to 500 mPa ⁇ s at 25 ° C. . Further, when the liquid composition is discharged via a discharge device as in the ink jet printing method, the viscosity at 25 ° C. is preferably 0.5 mPa ⁇ in order to prevent clogging and flight bending at the time of discharge. s to 50 mPa ⁇ s, more preferably 0.5 mPa ⁇ s to 20 mPa ⁇ s.
- the concentration of the polymer compound of the present embodiment in the liquid composition is not limited and is preferably 0.01% by weight to 10% by weight, more preferably 0.1% by weight to 5% by weight. .
- the organic thin film of this embodiment contains the polymer compound.
- the organic thin film of this embodiment can be easily produced from the liquid composition.
- the second organic thin film of the present invention is an insolubilized organic thin film insolubilized by crosslinking the polymer compound of the present embodiment, and is usually crosslinked by external stimulation by treatment such as heating or light irradiation. It can be obtained by curing. Since the insolubilized organic thin film is hardly soluble in a solvent such as an organic solvent, it is advantageous for stacking light emitting elements.
- Examples of the type of organic thin film according to this embodiment include a light-emitting thin film, a conductive thin film, and an organic semiconductor thin film.
- Examples of the conductive thin film include an electron transporting thin film and a hole transporting thin film. Since the organic thin film of this embodiment contains the polymer compound of this embodiment, when used as a conductive thin film of a light emitting device, particularly as a hole transporting thin film (hole transporting layer), the organic thin film of the light emitting device is positive. The hole transportability is excellent.
- the heating temperature for crosslinking the polymer compound of the present embodiment is not limited and is generally in the range of room temperature to 300 ° C., and the upper limit is 250 ° C. from the viewpoint of ease of thin film formation. Preferably, it is 190 degreeC, It is especially preferable that it is 170 degreeC.
- the lower limit is preferably 50 ° C., more preferably 70 ° C., and particularly preferably 100 ° C. from the viewpoint of the stability of the thin film at room temperature.
- the wavelength of light applied to light irradiation for crosslinking the polymer compound of the present embodiment is not limited.
- light used for light irradiation generally, ultraviolet light, near ultraviolet light, and visible light are used, and ultraviolet light and near ultraviolet light are preferable.
- the luminescent thin film may have good luminance and emission starting voltage of the light-emitting element, so that the emission quantum yield is preferably 30% or more, more preferably 50% or more, and 60% or more. Is more preferable, and 70% or more is particularly preferable.
- the conductive thin film preferably has a surface resistance of 1 K ⁇ / ⁇ or less, more preferably 100 ⁇ / ⁇ or less, and even more preferably 10 ⁇ / ⁇ or less.
- the electrical conductivity can be increased by doping the conductive thin film with a Lewis acid, an ionic compound or the like.
- the organic semiconductor thin film preferably has a higher electron mobility or hole mobility, that is, higher charge mobility.
- the charge mobility is preferably 10 ⁇ 5 cm 2 / V / s or more, more preferably 10 ⁇ 3 cm 2 / V / s or more, and further preferably 10 ⁇ 1 cm 2 / V / s or more. is there.
- an organic transistor can be manufactured using an organic semiconductor thin film. Specifically, an organic transistor can be formed by forming an organic semiconductor film on a Si substrate on which an insulating film such as SiO 2 and a gate electrode are formed, and forming a source electrode and a drain electrode with Au or the like. .
- the organic transistor of this embodiment is an organic transistor containing the polymer compound of this embodiment.
- a field effect transistor which is one embodiment of an organic transistor will be described.
- the polymer compound of the present embodiment has high charge transportability (particularly hole transportability), it is preferably used as a material for a polymer field effect transistor, particularly as a material for an organic semiconductor layer (active layer). it can.
- a source electrode and a drain electrode are usually provided in contact with an organic semiconductor layer (active layer) made of a polymer compound, and further in contact with the organic semiconductor layer (active layer).
- a gate electrode may be provided with the insulating layer interposed therebetween.
- Polymer field effect transistors are usually formed on a support substrate.
- a support substrate a glass substrate, a flexible film substrate, or a plastic substrate can also be used.
- the polymer field effect transistor can be produced by a known method, for example, a method described in JP-A-5-110069.
- the organic semiconductor layer forming step using a liquid composition includes a spin coating method, a casting method, a micro gravure method, a gravure coating method, and a bar coating method.
- a spin coating method includes a spin coating method, a casting method, a micro gravure method, a gravure coating method, and a bar coating method.
- Roll coating method, wire bar coating method, dip coating method, slit coating method, capillary coating method, spray coating method, screen printing method, flexographic printing method, offset printing method, inkjet printing method, nozzle coating method, etc. can be used.
- the polymer field effect transistor After producing the polymer field effect transistor, it is preferable to shield the polymer field effect transistor from the external environment by sealing the polymer field effect transistor with a sealing member. Thereby, the polymer field effect transistor is shielded from the atmosphere, and deterioration of the characteristics of the polymer field effect transistor can be suppressed.
- Examples of the sealing method include a method of covering with an ultraviolet (UV) curable resin, a thermosetting resin or an inorganic SiONx film, a method of bonding a glass plate or film with a UV curable resin, a thermosetting resin, or the like. Can be mentioned.
- UV ultraviolet
- thermosetting resin or an inorganic SiONx film
- a method of bonding a glass plate or film with a UV curable resin, a thermosetting resin, or the like can be mentioned.
- it is preferable to carry out the process from the preparation of the polymer field effect transistor to the sealing without exposing it to the atmosphere for example, in a dry nitrogen gas atmosphere or in a vacuum).
- the organic photoelectric conversion element (for example, solar cell etc.) of this embodiment is an organic photoelectric conversion element containing the polymer compound of this embodiment.
- the polymer compound of the present embodiment is used as a material for an organic photoelectric conversion element, particularly as a material for an organic semiconductor layer of a Schottky barrier type element utilizing an interface between an organic semiconductor and a metal, and an organic semiconductor and an inorganic semiconductor or organic It can be suitably used as a material for the organic semiconductor layer of a pn heterojunction element that utilizes an interface between semiconductors.
- organic photoelectric conversion using a composite system of a polymer compound and a low-molecular compound it can be suitably used as an element, for example, an electron-donating conjugated polymer (dispersed support) of a bulk heterojunction organic photoelectric conversion element in which a fullerene derivative is dispersed as an electron acceptor.
- an ohmic junction electrode is preferably used.
- a p-type semiconductor layer is formed on ITO, and an n-type semiconductor layer is further formed. It is only necessary that the electrodes are stacked and an ohmic junction type electrode is provided thereon.
- the organic photoelectric conversion element is usually formed on a support substrate.
- a support substrate a glass substrate or a flexible film substrate can be used, and a plastic substrate can also be used.
- Organic photoelectric conversion elements can be obtained by a known method such as Synth. Met. , 102, 982 (1999), and the method described in Science, 270, 1789 (1995).
- the light emitting device of this embodiment is a light emitting device having the organic thin film of this embodiment.
- the light emitting device of the present embodiment has, for example, an anode, a cathode, and an organic layer present between the anode and the cathode, and the organic layer contains the polymer compound or composition of the present embodiment.
- the organic layer that is, the organic thin film of the present embodiment contains the polymer compound or composition of the present embodiment as it is (organic thin film), and the polymer of the present embodiment in the organic thin film (composition).
- Examples of the organic layer include a light emitting layer, a hole transport layer, a hole injection layer, an electron transport layer, and an electron injection layer.
- the light emitting layer means a layer having a function of emitting light.
- the hole transport layer means a layer having a function of transporting holes.
- the electron transport layer means a layer having a function of transporting electrons.
- the electron transport layer and the hole transport layer are collectively referred to as a charge transport layer, and the electron injection layer and the hole injection layer are collectively referred to as a charge injection layer.
- the organic layer may consist of only one layer of the light emitting layer, that is, the function of each of these layers may be included in a single layer, and the light emitting layer, hole transport layer, hole injection layer A multilayer structure composed of a layer selected from a layer, an electron transport layer, and an electron injection layer may be used.
- the organic layer containing the polymer compound of the present embodiment is preferably at least one layer selected from the group consisting of a light emitting layer, a hole transport layer, a hole injection layer, an electron transport layer and an electron injection layer. More preferably, the organic layer is a light emitting layer or a hole transport layer.
- the organic layer containing the polymer compound of the present embodiment is a light emitting layer
- the light emitting layer is in addition to the light emitting material, and further has a hole transporting material, an electron transporting material, durability of the light emitting element and hole transporting.
- An additive for improving the balance of the sex may be included.
- the light emitting material means a material that emits fluorescence or phosphorescence.
- the organic layer containing the polymer compound of the present embodiment contains the polymer compound of the present embodiment and a hole transporting material
- the organic layer is added to 100 parts by weight of the polymer compound of the present embodiment.
- the content of the hole transporting material is usually 1 part by weight to 500 parts by weight, preferably 5 parts by weight to 200 parts by weight.
- the electron transport is performed with respect to 100 parts by weight of the polymer compound of this embodiment.
- the content of the functional material is usually 1 to 500 parts by weight, preferably 5 to 200 parts by weight.
- the organic layer containing the polymer compound of the present embodiment contains the polymer compound of the present embodiment and the light emitting material
- the light emitting material is contained with respect to 100 parts by weight of the polymer compound of the present embodiment.
- the amount is usually 1 to 500 parts by weight, preferably 5 to 200 parts by weight.
- the hole transport material As the hole transport material, the electron transport material, and the light emitting material, known low molecular weight compounds, triplet light emitting complexes, and high molecular weight compounds can be used.
- High molecular weight compounds include WO 99/13692, WO 99/48160, UK Patent 2340304, WO 00/53656, WO 01/19834, WO 00 No./55927, British Patent No. 2348316, International Publication No. 00/46321, International Publication No. 00/06665, International Publication No. 99/54943, International Publication No. 99/54385, US Patent No. 5777770, International Publication. No. 98/06773, International Publication No. 97/05184, International Publication No. 00/35987, International Publication No. 00/53655, International Publication No. 01/34722, International Publication No. 99/24526, International Publication No.
- (co) polymers having a fluorenediyl group as a structural unit described in No. 8 publication
- (co) polymers having an arylene group as a structural unit examples include (co) polymers having an arylene vinylene group as a structural unit, and (co) polymers having a divalent aromatic amine residue as a structural unit.
- low molecular weight compounds examples include naphthalene derivatives, anthracene and derivatives thereof, perylene and derivatives thereof, dyes such as polymethine dyes, xanthene dyes, coumarin dyes, cyanine dyes, metal complexes of 8-hydroxyquinoline and derivatives thereof, aromatics Group amines, tetraphenylcyclopentadiene and derivatives thereof, and tetraphenylbutadiene and derivatives thereof.
- Specific examples include compounds described in JP-A-57-51781 and JP-A-59-194393. Can be mentioned.
- the above triplet luminescent complex can be used.
- the thickness of the light-emitting layer varies depending on the material used, and may be selected so that the drive voltage and the light emission efficiency are appropriate values.
- the thickness of the light emitting layer is usually 1 nm to 1 ⁇ m, preferably 2 nm to 500 nm, more preferably 5 nm to 200 nm, and still more preferably 50 nm to 150 nm.
- the method for forming the light emitting layer includes a method using a solution.
- a forming method using a solution spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method, spray coating method, screen printing method, flexographic method Coating methods such as a printing method, an offset printing method, an ink jet printing method, a capillary coating method, and a nozzle coating method can be used.
- printing methods such as a screen printing method, a flexographic printing method, an offset printing method, and an ink jet printing method are preferable because pattern formation and multicolor coating are easy.
- the light emitting device of this embodiment includes a light emitting device in which an electron transport layer is provided between the cathode and the light emitting layer, a light emitting device in which a hole transport layer is provided between the anode and the light emitting layer, and a cathode and a light emitting layer.
- a light-emitting element in which an electron transport layer is provided between them and a hole transport layer is provided between the anode and the light-emitting layer can be given.
- the polymer compound of this embodiment is preferably contained in the hole transport layer.
- Examples of the structure of the light emitting device include the following structures a) to d). Note that “/” indicates that the layers described before and after are adjacent to each other. For example, “anode / light-emitting layer” indicates that the anode and the light-emitting layer are adjacent to each other. same as below. a) Anode / light emitting layer / cathode b) Anode / hole transport layer / light emitting layer / cathode c) Anode / light emitting layer / electron transport layer / cathode d) Anode / hole transport layer / light emitting layer / electron transport layer / cathode
- a hole transport layer adjacent to the light emitting layer may be provided between the light emitting layer and the anode.
- Examples of the structure of such a light emitting device include the following structures a ′) to d ′). a ′) anode / hole transport layer / light emitting layer / cathode b ′) anode / hole transport layer / hole transport layer / light emitting layer / cathode c ′) anode / hole transport layer / light emitting layer / electron transport layer / Cathode d ') Anode / hole transport layer / hole transport layer / light emitting layer / electron transport layer / cathode
- the hole transport layer usually contains the polymer compound of this embodiment.
- Other hole transport materials include polyvinylcarbazole and derivatives thereof, polysilane and derivatives thereof, polysiloxane derivatives having aromatic amine residues in the side chain or main chain, and pyrazoline.
- high molecular weight compounds include polyvinyl carbazole and derivatives thereof, polysilane and derivatives thereof, polysiloxane derivatives having an aromatic amine residue in the side chain or main chain, polyaniline and derivatives thereof, polythiophene and derivatives thereof, poly (P-phenylene vinylene) and derivatives thereof, poly (2,5-thienylene vinylene) and derivatives thereof are preferable, polyvinylcarbazole and derivatives thereof, polysilane and derivatives thereof, and aromatic amine residues in the side chain or main chain Polysiloxane derivatives are more preferred.
- low molecular weight compounds are preferred as the low molecular weight compounds.
- These low molecular weight compounds are preferably used by being dispersed in a polymer binder.
- polymer binder a compound that does not extremely inhibit charge transport and does not strongly absorb visible light is preferable.
- Polyvinylcarbazole and its derivatives can be obtained, for example, by cationic polymerization or radical polymerization of a vinyl monomer.
- polysilane and derivatives thereof examples include compounds described in Chem. Rev., 89, 1359 (1989), and British Patent Publication No. 2300196.
- the methods described in these can be used, and the Kipping method is particularly preferably used.
- polysiloxane and its derivatives have almost no hole transporting property in the siloxane skeleton structure
- a compound having the structure of the above low molecular weight hole transporting material in the side chain or main chain is preferred, and the hole transporting aromatic compound is preferable.
- a compound having an amine residue in the side chain or main chain is more preferred.
- a method for forming the hole transport layer when a low molecular weight compound is used, a method using a mixed solution with a polymer binder is exemplified, and a high molecular weight compound including the polymer compound of this embodiment is used. In some cases, a forming method using a solution is exemplified.
- a solvent capable of dissolving or uniformly dispersing the hole transport material is preferable.
- the solvent include those described in the above item “Liquid Composition”.
- the formation method using a solution includes spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method, spray coating method, screen printing method, flexographic method.
- Coating methods such as a printing method, an offset printing method, an ink jet printing method, a capillary coating method, and a nozzle coating method can be used.
- the thickness of the hole transport layer varies depending on the material used, and may be selected so that the drive voltage and the light emission efficiency are appropriate. Usually, the thickness is 1 nm to 1 ⁇ m, preferably 2 nm to 500 nm. More preferably, it is 5 nm to 200 nm.
- the electron transport layer usually contains the electron transport material (high molecular weight compound, low molecular weight compound).
- a known material can be used as the electron transporting material.
- electron transport materials include oxadiazole derivatives, anthraquinodimethane and its derivatives, benzoquinone and its derivatives, naphthoquinone and its derivatives, anthraquinone and its derivatives, tetracyanoanthraquinodimethane and its derivatives, fluorenone derivatives, Diphenyldicyanoethylene and its derivatives, diphenoquinone derivatives, metal complexes of 8-hydroxyquinoline and its derivatives, polyquinoline and its derivatives, polyquinoxaline and its derivatives, polyfluorene and its derivatives, etc., JP-A 63-70257, Japanese Unexamined Patent Publication Nos.
- oxadiazole derivatives benzoquinone and its derivatives, anthraquinone and its derivatives, metal complexes of 8-hydroxyquinoline and its derivatives, polyquinoline and its derivatives, polyquinoxaline and its derivatives, Polyfluorene and its derivatives are preferred, 2- (4-biphenylyl) -5- (4-tert-butylphenyl) -1,3,4-oxadiazole, benzoquinone, anthraquinone, tris (8-quinolinol) aluminum, polyquinoline Is more preferable.
- Examples of the method for forming the electron transport layer include a vacuum deposition method using a powder material and a formation method using a solution or a molten material when a low molecular weight compound is used, and a high molecular weight compound is used. In some cases, a forming method using a solution or a material in a molten state can be mentioned. In the formation method using a solution or a molten material, the above polymer binder may be used in combination.
- the solvent used for film formation from a solution is preferably a solvent that can dissolve or uniformly disperse the electron transport material and / or polymer binder.
- the solvent include the solvents described in the above item “Liquid composition”.
- Examples of the formation method using a solution or a molten material include spin coating, casting, micro gravure coating, gravure coating, bar coating, roll coating, wire bar coating, dip coating, spray coating, Coating methods such as a screen printing method, a flexographic printing method, an offset printing method, an ink jet printing method, a capillary coating method, and a nozzle coating method can be used.
- the thickness of the electron transport layer varies depending on the material used, and may be selected so that the drive voltage and the light emission efficiency are appropriate values. Usually, the thickness is 1 nm to 1 ⁇ m, preferably 2 nm to 500 nm. More preferably, the thickness is 5 nm to 200 nm.
- the hole injection layer and the electron injection layer have a function of improving the charge injection efficiency from the electrode among the charge transport layers provided so as to be adjacent to the electrode, and have an effect of lowering the driving voltage of the light emitting element.
- a charge injection layer or an insulating layer adjacent to the electrode usually 0.5 nm to 4.0 nm in average thickness, hereinafter the same Or a thin buffer layer may be inserted between the charge transport layer and the light-emitting layer for the purpose of improving the adhesion between adjacent layers and preventing the mixing of the layer materials. Good.
- the order and number of layers to be laminated and the thickness of each layer may be adjusted in consideration of the light emission efficiency and the element lifetime.
- examples of the light emitting device provided with the charge injection layer include the light emitting device provided with the charge injection layer adjacent to the cathode and the charge adjacent to the anode.
- a light emitting element provided with an injection layer can be given. Examples of the laminated structure of such a light emitting element include the following structures e) to p).
- the charge injection layer is a layer containing a conductive polymer, provided between the anode and the hole transport layer, and has an ionization potential of an intermediate value between the anode material and the hole transport material contained in the hole transport layer.
- Examples thereof include a layer including a material having a material, a layer including a material provided between the cathode and the electron transport layer, and having a material having an intermediate electron affinity between the cathode material and the electron transport material included in the electron transport layer.
- the electrical conductivity of the conductive polymer is preferably 1 ⁇ 10 ⁇ 5 S / cm to 1 ⁇ 10 3 S / cm, and the leakage current of the light emitting element is reduced. to reduce is more preferably 1 ⁇ 10 -5 S / cm ⁇ 1 ⁇ 10 2 S / cm, 1 ⁇ 10 -5 S / cm ⁇ 1 ⁇ 10 1 S / cm is more preferable.
- the conductive polymer is doped with an appropriate amount of ions.
- the kind of ions to be doped is an anion for the hole injection layer and a cation for the electron injection layer.
- anions include polystyrene sulfonate ions, alkylbenzene sulfonate ions, camphor sulfonate ions, and the like.
- cations include lithium ions, sodium ions, potassium ions, and tetrabutylammonium ions.
- the material used for the charge injection layer may be selected in relation to the electrode and the material of the adjacent layer.
- materials used for the charge injection layer include polyaniline and derivatives thereof, polythiophene and derivatives thereof, polypyrrole and derivatives thereof, polyphenylene vinylene and derivatives thereof, polythienylene vinylene and derivatives thereof, polyquinoline and derivatives thereof, polyquinoxaline and derivatives thereof , Conductive polymers such as polymers containing an aromatic amine residue in the main chain or side chain, metal phthalocyanines (such as copper phthalocyanine), and carbon.
- Examples of the material for the insulating layer include metal fluorides, metal oxides, and organic insulating materials.
- Examples of the light-emitting element provided with an insulating layer include a light-emitting element provided with an insulating layer so as to be adjacent to the cathode and a light-emitting element provided with an insulating layer so as to be adjacent to the anode.
- Examples of the laminated structure of such a light emitting device include the following structures q) to ab). q) anode / insulating layer / light emitting layer / cathode r) anode / light emitting layer / insulating layer / cathode s) anode / insulating layer / light emitting layer / insulating layer / cathode t) anode / insulating layer / hole transport layer / light emitting layer / Cathode u) anode / hole transport layer / light emitting layer / insulating layer / cathode v) anode / insulating layer / hole transport layer / light emitting layer / insulating layer / cathode w) anode / insulating layer / light emitting layer / electron transport layer / Cathode x) anode / light emitting layer / electron transport layer / cathode y
- the substrate on which the light emitting element of this embodiment is formed may be a substrate that does not change chemically when forming an electrode and forming an organic layer, and is made of a material such as glass, plastic, polymer film, silicon, or the like. Is exemplified. In the case of an opaque substrate, the electrode provided on the opposite side of the substrate is usually transparent or translucent.
- At least one of the anode and the cathode included in the light emitting device of this embodiment is usually transparent or translucent, but the anode side is preferably transparent or translucent.
- anode materials include conductive metal oxide films, translucent metal thin films, and the like, specifically, indium oxide, zinc oxide, tin oxide, and indium tin that is a composite thereof. Films made of conductive compounds made of oxide (ITO), indium zinc oxide (IZO), etc., films made of NESA, gold, platinum, silver, copper, etc. are used, ITO, IZO, tin oxide The film made in is preferred. Examples of the production method include a vacuum deposition method, a sputtering method, an ion plating method, a plating method, and the like. As the anode, a transparent conductive film made of an organic material such as polyaniline and a derivative thereof, polythiophene and a derivative thereof may be used. The anode may have a laminated structure of two or more layers.
- the thickness of the anode can be selected in consideration of light transmission and electrical conductivity.
- the thickness of the anode is, for example, 10 nm to 10 ⁇ m, preferably 20 nm to 1 ⁇ m, more preferably 30 to 500 nm.
- a layer made of a phthalocyanine derivative, a conductive polymer, carbon or the like; an insulating layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like may be provided adjacent to the anode to facilitate charge injection. Good.
- a material having a small work function is preferable, lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, scandium, vanadium, zinc, yttrium, indium, cerium, samarium, Europium, terbium, ytterbium and other metals, or two or more of them, or one or more of them, and one of gold, silver, platinum, copper, manganese, titanium, cobalt, nickel, tungsten, tin Alloys with more than one kind, graphite and graphite intercalation compounds, etc. are used.
- the cathode may have a laminated structure of two or more layers.
- the thickness of the cathode may be adjusted in consideration of electric conductivity and durability, and is usually 10 nm to 10 ⁇ m, preferably 20 nm to 1 ⁇ m, more preferably 50 nm to 500 nm.
- a vacuum deposition method, a sputtering method, a laminating method in which a metal thin film is thermocompression bonded, or the like is used.
- a layer made of a conductive polymer, or a metal oxide, metal fluoride, organic insulating material, etc. A layer having an average thickness of 2 nm or less may be provided, and a protective layer for protecting the light-emitting element may be provided after the cathode is manufactured.
- a protective layer and / or a protective cover in order to protect the light emitting element from the external environment.
- the material for the protective layer high molecular weight compounds, metal oxides, metal fluorides, metal borides and the like can be used.
- a metal plate, a glass plate, a plastic plate with a low water permeability treatment on the surface, or the like can be used.
- the protective cover is a substrate provided with a light emitting element with a thermosetting resin or a photocurable resin. A method in which the light-emitting elements are sealed together is suitably used. If a space is maintained between the light emitting element and the protective cover using a spacer, it is easy to prevent damage to the element.
- an inert gas such as nitrogen gas or argon gas
- oxidation of the cathode can be prevented, and further, moisture adsorbed in the manufacturing process can be obtained by installing a desiccant such as barium oxide in the space.
- a desiccant such as barium oxide
- FIG. 1 is a schematic cross-sectional view showing a light emitting device (light emitting device having the configuration of (p) above) according to the first embodiment of the present invention.
- 1 includes a substrate 10 and an anode 11, a hole injection layer 12, a hole transport layer 13, a light emitting layer 14, an electron transport layer 15, and an electron injection layer 16 formed on the substrate 10.
- the anode 11 is provided on the substrate 10 so as to be in contact with the substrate 10.
- a hole injection layer 12, a hole transport layer 13, a light emitting layer 14, and an electron transport layer are provided on the opposite side of the anode 11 from the substrate 10.
- the hole transport layer 13 includes the polymer compound according to the embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view showing a light-emitting element (light-emitting element having the configuration (h) above) according to the second embodiment of the present invention.
- a light emitting element 110 shown in FIG. 2 includes a substrate 10, and an anode 11, a hole injection layer 12, a hole transport layer 13, a light emitting layer 14, and a cathode 17 formed on the substrate 10.
- the anode 11 is provided on the substrate 10 so as to be in contact with the substrate.
- a hole injection layer 12, a hole transport layer 13, a light emitting layer 14 and a cathode 17 are provided on the opposite side of the anode 11 from the substrate 10. They are stacked in order.
- the hole transport layer 13 includes the polymer compound according to the embodiment of the present invention.
- the light emitting element containing the polymer compound of the embodiment of the present invention includes a planar light source such as a curved light source or a planar light source (for example, illumination); a segment display device, a dot matrix display device (for example, a dot matrix type flat). Display), liquid crystal display devices (for example, backlights of liquid crystal display devices), and the like.
- the polymer compound of the present embodiment is suitable as a material used for these productions, and also includes a dye material for laser, an organic solar cell material, an organic semiconductor material for an organic transistor, and a conductive thin film material. It is also useful as a conductive thin film material such as an organic semiconductor thin film, a light emitting thin film material that emits fluorescence, and a material for a polymer field effect transistor.
- the planar anode and cathode may be arranged so as to overlap each other.
- a method in which a mask having a predetermined pattern window is provided on the surface of the planar light emitting element, either the anode or the cathode, or both electrodes Is formed in a predetermined pattern can be obtained by forming a pattern by any of these methods and arranging several electrodes so that they can be turned ON / OFF independently.
- both the anode and the cathode may be formed in stripes and arranged so as to be orthogonal to each other. Partial color display and multi-color display are possible by a method of separately coating a plurality of types of polymer compounds having different emission colors or a method using a color filter or a fluorescence conversion filter.
- the dot matrix display device can be driven passively, or may be driven actively in combination with TFTs or the like. These display devices can be used as display devices for computers, televisions, mobile terminals, mobile phones, car navigation systems, video camera viewfinders, and the like.
- FIG. 3 is a schematic cross-sectional view showing an embodiment of the planar light source of the present invention.
- a planar light source 200 shown in FIG. 3 includes a substrate 20, an anode 21, a hole injection layer 22, a light emitting layer 23, a cathode 24, and a protective layer 25.
- the anode 21 is provided on the substrate 20 so as to be in contact with the substrate 20, and a hole injection layer 22, a light emitting layer 23, and a cathode 24 are laminated in this order on the opposite side of the anode 21 from the substrate 20.
- the protective layer 25 is formed so as to cover all of the anode 21, the hole injection layer 22, the light emitting layer 23, and the cathode 24 formed on the substrate 20 and in contact with the substrate 20 at the end.
- the light emitting layer 23 contains the polymer compound according to the embodiment of the present invention.
- the planar light source 200 shown in FIG. 3 has a configuration in which a plurality of types of light emitting layers different from the light emitting layer 23 other than the light emitting layer 23 are further provided on the same substrate 20, and a red light emitting material is provided in each light emitting layer.
- a color display device can be obtained by using a blue light emitting material and a green light emitting material and independently controlling the driving of each light emitting layer.
- polystyrene-equivalent number average molecular weight and weight average molecular weight of the polymer compound were determined using gel permeation chromatography (GPC) (manufactured by Shimadzu Corporation, trade name: LC-10Avp).
- GPC gel permeation chromatography
- ⁇ Measurement conditions The polymer compound to be measured was dissolved in tetrahydrofuran to a concentration of about 0.05% by weight, and 10 ⁇ L was injected into GPC. Tetrahydrofuran was used as the mobile phase of GPC and was allowed to flow at a flow rate of 2.0 mL / min.
- PLgel MIXED-B manufactured by Polymer Laboratories
- a differential refractive index detector (manufactured by Shimadzu Corporation, trade name: RID-10A) was used as the detector.
- NMR measurement was performed using NMR (Varian, Inc., trade name: INOVA300) after dissolving 5 to 20 mg of a measurement sample in about 0.5 mL of an organic solvent.
- LC-MS measurement was performed by the following method.
- the measurement sample is dissolved in an appropriate organic solvent (chloroform, tetrahydrofuran, ethyl acetate, toluene, etc.) to a concentration of 1 mg / mL to 10 mg / mL, and LC-MS (manufactured by Agilent Technologies, trade name: 1100LCMSD) Measured and analyzed.
- LC-MS manufactured by Agilent Technologies, trade name: 1100LCMSD
- ion-exchanged water, acetonitrile, tetrahydrofuran or a mixture thereof was used, and acetic acid was added as necessary.
- the column used was L-column 2 ODS (3 ⁇ m) (manufactured by Chemicals Evaluation and Research Institute, inner diameter: 4.6 mm, length: 250 mm, particle diameter: 3 ⁇ m).
- the evaluation of the hole transportability is performed by changing the cathode material in the above light emitting element to a material having a high work function (for example, gold, silver, platinum, etc.) ("hole only device (HOD)").
- HOD hole only device
- Examples of the structure of the element for evaluating hole transportability include the following HOD1 to HOD4.
- HOD4 is used, and gold is used as a cathode material, and hole transportability is evaluated. Went.
- HOD1 Anode / hole transport layer / cathode HOD2
- Anode / hole transport layer / light emitting layer / cathode HOD4 Anode / hole injection layer / hole transport layer / light emitting layer / cathode
- Example 1 Synthesis of polymer compound A> A polymer having a structural unit represented by the following formula (K-1) and a structural unit represented by the following formula (K-2) at a molar ratio of 92.5: 7.5 (theoretical value depending on the charged raw materials) ( Polymer compound A) was synthesized as follows.
- compound 2 (2.010 g, 2.00 mmol) synthesized in Synthesis Example 1, compound 1 (1.549 g, 1.70 mmol), and a compound represented by the following formula (M-2-BR) (0.158 g, 0.30 mmol) and toluene (40 mL) were mixed and heated to 105 ° C.
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.2 g of polymer compound A.
- the number average molecular weight of polystyrene conversion of the high molecular compound A was 0.31 * 10 ⁇ 5 >, and the weight average molecular weight of polystyrene conversion was 2.48 * 10 ⁇ 5 >.
- the C content was 88.2% by weight, the H content was 8.23% by weight and the N content was 3.58% by weight.
- Example 2 Synthesis of polymer compound B> A polymer having a structural unit represented by the above formula (K-1) and a structural unit represented by the following formula (K-3) at a molar ratio of 92.5: 7.5 (theoretical value depending on the charged raw materials) ( Polymer compound B) was synthesized as follows.
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.2 g of polymer compound B.
- the number average molecular weight of polystyrene conversion of the high molecular compound B was 0.11 * 10 ⁇ 5 >, and the weight average molecular weight of polystyrene conversion was 1.59 * 10 ⁇ 5 >.
- compound 2 (2.010 g, 2.00 mmol) synthesized in Synthesis Example 1, compound 1 (1.457 g, 1.60 mmol), and compound represented by the above formula (M-2-BR) (0.106 g, 0.20 mmol), a compound represented by the following formula (M-4-BR) (0.092 g, 0.20 mmol), and toluene (40 mL) were mixed and heated to 105 ° C. .
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.0 g of polymer compound C.
- the polymer compound C had a polystyrene-equivalent number average molecular weight of 0.33 ⁇ 10 5 and a polystyrene-equivalent weight average molecular weight of 3.40 ⁇ 10 5 .
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.0 g of polymer compound D.
- the number average molecular weight of polystyrene conversion of the high molecular compound D was 0.15 * 10 ⁇ 5 >, and the weight average molecular weight of polystyrene conversion was 1.38 * 10 ⁇ 5 >.
- Example 5 Production and evaluation of hole-only device 1 using polymer compound A> A hole-only device 1 which is an element capable of flowing only holes is manufactured, and the amount of hole current of an electronic element using the compound of the present invention, a composition containing the compound, and an organic thin film containing the compound is evaluated. did.
- the substrate provided with this organic thin film was heated at 170 ° C. for 15 minutes to dry the organic thin film, and then naturally cooled to room temperature to obtain a first organic layer.
- the second organic layer forming composition was applied on the first organic layer obtained in (1-1) above by a spin coating method to obtain an organic thin film having a thickness of 80 nm.
- the substrate provided with the organic thin film was heated at 180 ° C. for 60 minutes in a nitrogen gas atmosphere to insolubilize the organic thin film in an organic solvent, and then naturally cooled to room temperature to obtain a second organic layer.
- a cathode which is a gold layer having a thickness of 50 nm was formed by vacuum deposition. .
- the gold deposition process was started after the degree of vacuum reached 1 ⁇ 10 ⁇ 4 (Pa) or less.
- the substrate having the laminated structure including the substrate, the anode, the first organic layer, the second organic layer, and the cathode obtained in the steps up to (1-3) above is taken out from the vacuum deposition apparatus and sealed in a nitrogen gas atmosphere. Sealing was performed with glass and a two-component mixed epoxy resin (PX681C manufactured by Robner Resins) to obtain a hole-only device 1.
- a two-component mixed epoxy resin PX681C manufactured by Robner Resins
- the first organic layer has a function of receiving holes from the anode and transporting holes to the second organic layer when a voltage is applied to the hole-only device 1, and the second organic layer has holes. Under the application of a voltage to the only device 1, it has a function of receiving holes from the first organic layer and transporting the holes to the cathode.
- Example 6 Production and evaluation of hole-only device 2 using polymer compound B> A hole-only device 2 was prepared and evaluated in the same manner as in Example 5 except that the polymer compound B was used as the compound constituting the second organic layer. As a result, the current density flowing through the hole-only device 2 when the electric field strength was 500 kV / cm was 103.2 mA / cm 2 . The results are shown in Table 1. In this evaluation, when an electric field strength of 500 kV / cm is applied to the hole-only device 2, light emission due to current excitation is not observed, and the electron current flowing through the hole-only device 2 It was confirmed that the amount was very small.
- Example 7 Production and evaluation of hole-only device 3 using polymer compound C> A hole-only device 3 was prepared and evaluated in the same manner as in Example 5 except that the polymer compound C was used as the compound constituting the second organic layer. As a result, the current density flowing through the hole-only device 3 when the electric field strength was 500 kV / cm was 165.5 mA / cm 2 . The results are shown in Table 1. In this evaluation, when an electric field strength of 500 kV / cm is applied to the hole-only device 3, no light emission due to current excitation is observed, and the electron current flowing through the hole-only device 3 It was confirmed that the amount was very small.
- Example 8 Production and evaluation of hole-only device 4 using polymer compound D> A hole-only device 4 was prepared and evaluated in the same manner as in Example 5 except that the polymer compound D was used as the compound constituting the second organic layer. As a result, the density of current flowing through the hole-only device 4 when the electric field strength was 500 kV / cm was 114.4 mA / cm 2 . The results are shown in Table 1. In this evaluation, when an electric field strength of 500 kV / cm is applied to the hole-only device 4, no light emission due to current excitation is observed, and the electron current flowing through the hole-only device 4 It was confirmed that the amount was very small.
- compound 2 (2.044 g, 2.03 mmol) synthesized in Synthesis Example 1, a compound represented by the following formula (M-8-BR) (1.766 g, 1.60 mmol), and the above formula
- the compound represented by (M-2-BR) (0.106 g, 0.20 mmol)
- the compound represented by the above formula (M-4-BR) 0.092 g, 0.20 mmol
- toluene 36 mL
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order. The obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.2 g of polymer compound E.
- the number average molecular weight of polystyrene conversion of the high molecular compound E was 0.30 * 10 ⁇ 5 >, and the weight average molecular weight of polystyrene conversion was 1.99 * 10 ⁇ 5 >.
- Example 10 Synthesis of polymer compound F> A structural unit represented by the above formula (K-1), a structural unit represented by the following formula (K-9), a structural unit represented by the above formula (K-2), and the above formula (K-4) Synthesis of a polymer (polymer compound F) having the structural units shown at a molar ratio of 50: 40: 5: 5 (theoretical value based on the charged raw materials) was performed as follows.
- compound 2 (2.060 g, 2.05 mmol) synthesized in Synthesis Example 1, a compound represented by the following formula (M-9-BR) (1.304 g, 1.60 mmol), and the above formula
- the compound represented by (M-2-BR) (0.106 g, 0.20 mmol)
- the compound represented by the above formula (M-4-BR) 0.092 g, 0.20 mmol
- toluene 43 mL
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order. The obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.3 g of polymer compound F.
- the number average molecular weight of polystyrene conversion of the high molecular compound F was 0.26 * 10 ⁇ 5 >, and the weight average molecular weight of polystyrene conversion was 2.16 * 10 ⁇ 5 >.
- Example 11 Production and evaluation of hole-only device 5 using polymer compound F> A hole-only device 5 was prepared and evaluated in the same manner as in Example 5 except that the polymer compound F was used as the compound constituting the second organic layer. As a result, the current density flowing through the hole-only device 5 when the electric field strength was 500 kV / cm was 73.8 mA / cm 2 . The results are shown in Table 1. In this evaluation, when an electric field strength of 500 kV / cm is applied to the hole-only device 5, no light emission due to current excitation is observed, and the electron current flowing through the hole-only device 5 It was confirmed that the amount was very small.
- compound 1 (1.549 g, 1.70 mmol), the compound represented by the above formula (M-2-BR) (0.158 g, 0.30 mmol), and the following formula (M-6-E) ) (1.814 g, 2.00 mmol) and toluene (40 mL) were mixed and heated to 105 ° C. Thereafter, a 20 wt% tetraethylammonium hydroxide aqueous solution (6.9 g) was added dropwise, dichlorobis (tris (o-methoxyphenyl)) phosphine palladium (1.76 mg) was added, and the mixture was refluxed for 3 hours.
- polymer compound AA This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order. The obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.2 g of polymer compound AA.
- the polymer compound AA had a polystyrene-equivalent number average molecular weight of 0.54 ⁇ 10 5 and a polystyrene-equivalent weight average molecular weight of 3.11 ⁇ 10 5 .
- compound 1 (1.093 g, 1.20 mmol), the compound represented by the above formula (M-2-BR) (0.158 g, 0.30 mmol), and the following formula (M-6-E) ) (1.814 g, 2.00 mmol), a compound represented by the following formula (M-7-BR) (0.274 g, 0.50 mmol), and toluene (40 mL) are mixed.
- the temperature was raised to ° C.
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- polymer compound BB This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order. The obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 2.1 g of polymer compound BB.
- the polymer compound BB had a polystyrene-equivalent number average molecular weight of 0.55 ⁇ 10 5 and a polystyrene-equivalent weight average molecular weight of 2.63 ⁇ 10 5 .
- compound 1 (3.255 g, 3.57 mmol), the compound represented by the above formula (M-6-E) (3.813 g, 4.21 mmol), and the above formula (M-3-BR) ) (0.271 g, 0.63 mmol) and toluene (55 mL) were mixed and heated to 105 ° C. Thereafter, a 20 wt% tetraethylammonium hydroxide aqueous solution (13.8 g) was added dropwise, and palladium acetate (1.40 mg, 6.31 ⁇ mol) and tris (o-methoxyphenyl) phosphine (8.80 mg, 25.2 ⁇ mol) were added. And refluxed for 6 hours.
- phenylboronic acid (51.3 mg) was added thereto, and the mixture was further refluxed for 12 hours.
- an aqueous sodium diethyldithiacarbamate solution was added thereto, and the mixture was stirred at 80 ° C. for 2 hours.
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- polymer compound CC This precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order. The obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 4.8 g of polymer compound CC.
- the polymer compound CC had a polystyrene-equivalent number average molecular weight of 2.82 ⁇ 10 5 and a polystyrene-equivalent weight average molecular weight of 0.60 ⁇ 10 5 .
- compound 1 (4.099 g, 4.50 mmol), the compound represented by the above formula (M-6-E) (3.224 g, 3.56 mmol), and the following formula (M-2-E) ) (0.280 g, 0.45 mmol), a compound represented by the following formula (M-4-E) (0.250 g, 0.45 mmol), and toluene (120 mL) were mixed.
- the temperature was raised to ° C.
- the resulting mixture was cooled, charged with toluene, and washed twice with water, twice with a 3 wt% aqueous acetic acid solution, and twice with water.
- the obtained solution was dropped into methanol and collected by filtration to obtain a precipitate.
- the polymer compound DD had a polystyrene-equivalent number average molecular weight of 0.40 ⁇ 10 5 and a polystyrene-equivalent weight average molecular weight of 1.45 ⁇ 10 5 .
- Tris (dibenzylideneacetone) dipalladium complex (0.073 g, 0.08 mmol), tri-tert-butylphosphine tetrafluoroborate (0.093 g, 0.32 mmol), and tert-butoxy sodium (1.54 g, 16.0 mmol), the compound represented by the above formula (M-7-BR) (1.14 g, 2.00 mmol), and the compound represented by the above formula (M-2-BR) (1.06 g, 2. 00 mmol) was charged, and the system was sufficiently replaced with nitrogen gas.
- aniline (0.38 g, 4.00 mmol) and toluene (45 mL) were mixed, heated to 105 ° C., and stirred for 8 hours.
- the reaction solution was allowed to cool, and the reaction solution was dropped into an aqueous ethanol solution (ethanol 250 mL + water 40 mL), collected by filtration, and dried to obtain a precipitate.
- the obtained precipitate was dissolved in toluene, reprecipitated in acetone, and the precipitated polymer was separated by filtration.
- the obtained polymer was dissolved in toluene, washed with dilute hydrochloric acid, reprecipitated with ammonia-containing ethanol, and the polymer was filtered off.
- the polymer separated by filtration was dissolved in toluene and purified twice by silica gel column chromatography, and then the solution was dropped into an aqueous ethanol solution, filtered and dried to obtain 0.85 g of a polymer compound EE.
- the polymer compound EE had a polystyrene-equivalent number average molecular weight of 0.16 ⁇ 10 5 and a polystyrene-equivalent weight average molecular weight of 0.39 ⁇ 10 5 .
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Abstract
Description
aは1~3の整数を示し、bは0または1を示す。
Ar1およびAr3は、それぞれ独立に、置換基を有していてもよいアリーレン基、または、置換基を有していてもよい2価の複素環基を示し、Ar2およびAr4は、それぞれ独立に、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および置換基を有していてもよい2価の複素環基からなる群より選ばれる、互いに同一でも異なっていてもよい2個以上の基が連結した2価の基を示し、Ar1、Ar2、Ar3およびAr4はそれぞれ、これらの基が結合している窒素原子に結合している当該基以外の基と互いに連結して環構造を形成していてもよい。Ar2が複数個存在する場合、それらは同一でも異なっていてもよい。
RA、RBおよびRCは、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。RBが複数個存在する場合、それらは同一でも異なっていてもよい。]
naは0~3の整数を示し、nbは0~12の整数を示し、nAは0または1を示し、nは0~4の整数を示す。
Ar5は置換基を有していてもよい(2+n)価の芳香族炭化水素基または置換基を有していてもよい(2+n)価の複素環基を示す。
LaおよびLbは、それぞれ独立に、置換基を有していてもよいアルキレン基または置換基を有していてもよいフェニレン基を示す。Laが複数個存在する場合、それらは同一でも異なっていてもよい。Lbが複数個存在する場合、それらは同一でも異なっていてもよい。
LAは酸素原子または硫黄原子を示す。LAが複数個存在する場合、それらは同一でも異なっていてもよい。
Xは1価の架橋性基を示す。Xが複数個存在する場合、それらは同一でも異なっていてもよい。]
cは0または1を示す。
Ar6およびAr8は、それぞれ独立に、置換基を有していてもよいアリーレン基または置換基を有していてもよい2価の複素環基を示し、Ar7は、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および置換基を有していてもよい2価の複素環基からなる群より選ばれる同一であっても異なっていてもよい2個以上の基が連結した2価の基を示す。
R1は1価の架橋性基を示し、R2は1価の架橋性基、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。]
[2] 前記式(2)で示される構成単位が、下記式(4)で示される構成単位である、[1]に記載の高分子化合物。
ncは0~3の整数を示し、ndは0~12の整数を示し、nBは0または1を示し、mは0~2の整数を示す。
LcおよびLdは、それぞれ独立に、置換基を有していてもよいアルキレン基または置換基を有していてもよいフェニレン基を示す。Lcが複数個存在する場合、それらは同一でも異なっていてもよい。Ldが複数個存在する場合、それらは同一でも異なっていてもよい。
LBは酸素原子または硫黄原子を示す。LBが複数個存在する場合、それらは同一でも異なっていてもよい。
Xは1価の架橋性基を示す。Xが複数個存在する場合、それらは同一でも異なっていてもよい。
R3は、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアルコキシ基、置換基を有していてもよいアリール基、置換基を有していてもよいアリールオキシ基、置換基を有していてもよい1価の複素環基または置換基を有していてもよい1価の複素環オキシ基を示す。R3が複数個存在する場合、それらは同一でも異なっていてもよい。]
[3] 前記Xが、置換基を有していてもよい下記式(X-1)で示される1価の架橋性基である、[1]または[2]に記載の高分子化合物。
neおよびnfは、それぞれ独立に、0または1を示す。
LX1は酸素原子、硫黄原子、カルボニル基または-O-CO-で示される基を示す。
R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアルコキシ基、置換基を有していてもよいアルキルチオ基、置換基を有していてもよいアリール基、置換基を有していてもよいアリールオキシ基、置換基を有していてもよいアリールチオ基、置換基を有していてもよい1価の複素環基、置換基を有していてもよいアミノ基、置換基を有していてもよいシリル基、置換基を有していてもよいアシル基、置換基を有していてもよいアシルオキシ基、ハロゲン原子、シアノ基またはニトロ基を示す。]
[5] 前記Xが複数個存在する場合、それらは置換基を有していてもよい下記式(X-1)で示される1価の架橋性基を少なくとも1種類含み、かつ、下記式(X-2)で示される1価の架橋性基を少なくとも1種類含む、[1]または[2]に記載の高分子化合物。
neおよびnfは、それぞれ独立に、0または1を示す。
LX1は酸素原子、硫黄原子、カルボニル基または-O-CO-で示される基を示す。
R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアルコキシ基、置換基を有していてもよいアルキルチオ基、置換基を有していてもよいアリール基、置換基を有していてもよいアリールオキシ基、置換基を有していてもよいアリールチオ基、置換基を有していてもよい1価の複素環基、置換基を有していてもよいアミノ基、置換基を有していてもよいシリル基、置換基を有していてもよいアシル基、置換基を有していてもよいアシルオキシ基、ハロゲン原子、シアノ基またはニトロ基を示す。]
[6] 前記Ar2が、置換基を有していてもよい2,7-フルオレンジイル基、置換基を有していてもよいナフタレンジイル基、置換基を有していてもよいフェナントレンジイル基、置換基を有していてもよいジヒドロフェナントレンジイル基、置換基を有していてもよいアントラセンジイル基、置換基を有していてもよいピレンジイル基または置換基を有していてもよいペリレンジイル基である、[1]~[5]のいずれか1つに記載の高分子化合物。
[7] 下記式(5)で示される第1単量体と下記式(6)で示される第2単量体とを含む単量体組成物の重合反応を行って、[1]~[6]のいずれか1つに記載の高分子化合物を得る、高分子化合物の製造方法。
dは1~3の整数を示し、eは0または1を示す。
Ar9およびAr11は、それぞれ独立に、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基を示し、Ar10およびAr12は、それぞれ独立に、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および置換基を有していてもよい2価の複素環基からなる群より選ばれる同一でも異なっていてもよい2個以上の基が連結した2価の基を示し、Ar9、Ar10、Ar11およびAr12はそれぞれ、これらの基が結合している窒素原子に結合している当該基以外の基と互いに連結して環構造を形成していてもよい。Ar10が複数個存在する場合、それらは同一でも異なっていてもよい。
RD、REおよびRFは、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。REが複数個存在する場合、それらは同一でも異なっていてもよい。
Z1およびZ2は、それぞれ独立に、下記置換基A群から選ばれる基を示す。
<置換基A群>
-B(OR101)2で示される基(R101は水素原子または置換基を有していてもよいアルキル基を示し、互いに連結して、R101に結合する酸素原子とともに環構造を形成していてもよい。複数個存在するR101は同一でも異なっていてもよい。)、
-BF4Q1で示される基(Q1は、Li+、Na+、K+、Rb+およびCs+からなる群より選ばれる1価の陽イオンを示す。)、
-MgY1で示される基(Y1は、塩素原子、臭素原子またはヨウ素原子を示す。)、
-ZnY2で示される基(Y2は、塩素原子、臭素原子またはヨウ素原子を示す。)、および、
-Sn(R102)3で示される基(R102は水素原子またはアルキル基を示し、互いに連結して、R102に結合するスズ原子とともに環構造を形成していてもよい。複数個存在するR102は同一でも異なっていてもよい。)。]
fは0~3の整数を示し、gは0または1を示す。
Ar13およびAr15は、それぞれ独立に、置換基を有していてもよいアリーレン基または置換基を有していてもよい2価の複素環基を示し、Ar14およびAr16は、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および2価の複素環基からなる群より選ばれる同一でも異なっていてもよい2個以上の基が連結した2価の基を示し、Ar13、Ar14、Ar15およびAr16はそれぞれ、これらの基が結合している窒素原子に結合している当該基以外の基と互いに連結して環構造を形成していてもよい。Ar14が複数個存在する場合、それらは同一でも異なっていてもよい。
RG、RHおよびRIは、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。RHが複数個存在する場合、それらは同一でも異なっていてもよい。
Z3およびZ4は、それぞれ独立に、下記置換基B群から選ばれる基を示す。
<置換基B群>
塩素原子、臭素原子、ヨウ素原子、-O-S(=O)2R103で示される基(R103は、置換基を有していてもよいアルキル基または置換基を有していてもよいアリール基を示す。)。]
[8] [1]~[6]のいずれか1つに記載の高分子化合物と、
正孔輸送性材料、電子輸送性材料および発光材料からなる群より選ばれる少なくとも1種類の材料を含有する組成物。
[9] [1]~[6]のいずれか1つに記載の高分子化合物と、溶媒とを含有する組成物。
[10] 溶媒をさらに含有する、[8]に記載の組成物。
[11] [1]~[6]のいずれか1つに記載の高分子化合物を含有する有機薄膜。
[12] [8]に記載の組成物を含有する有機薄膜。
[13] [11]に記載の有機薄膜を有機溶媒に対して不溶化させた、不溶化有機薄膜。
[14] [12]に記載の有機薄膜を有機溶媒に対して不溶化させた、不溶化有機薄膜。
[15] [11]または[12]に記載の有機薄膜を有する発光素子。
[16] [13]または[14]に記載の不溶化有機薄膜を有する発光素子。
[17] [15]または[16]に記載の発光素子を有する面状光源。
[18] [15]または[16]に記載の発光素子を有する表示装置。
本実施形態の高分子化合物は、上記式(1)で示される第1構成単位を全構成単位の合計に対して51モル%以上含み、かつ、上記式(2)で示される構成単位および上記式(3)で示される構成単位のうちの少なくとも一方を含む。
第1構成単位は、上記式(1)で示される構成単位である。式(1)で示される構成単位は、通常、架橋性基を有しない。
なお、当該基は上記置換基を有していてもよい。
第2構成単位は、上記式(2)で示される構成単位である。
なお、式(X-01)~(X-19)中、「*」は結合手を示す。
第3構成単位は、上記式(3)で示される構成単位である。
本実施形態の高分子化合物を用いた発光素子は、正孔輸送性および耐久性に優れた高性能の発光素子である。したがって、該発光素子は、液晶ディスプレイ装置のバックライト、照明用としての曲面状や平面状の光源、セグメント表示装置、ドットマトリックス表示装置等に有用である。さらに、本実施形態の高分子化合物は、発光素子のみならず有機太陽電池、有機トランジスタなどの電子素子に用いることができ、レーザー用色素材料、有機太陽電池用材料、有機トランジスタ用の有機半導体材料、導電性薄膜用材料、有機半導体薄膜材料等としても用いることができる。
本実施形態の高分子化合物が共重合体である場合、例えば、上記式(5)で示される化合物(以下、「化合物5」ということがある。)および上記式(6)で示される化合物(以下、「化合物6」ということがある。)と、下記式(2M)で示される化合物(以下、「化合物2M」ということがある。)および/または下記式(3M)で示される化合物(以下、「化合物3M」ということがある。)と、を縮合重合させることにより製造することができる。
本明細書において、化合物5、化合物6、化合物2Mおよび化合物3Mを総称して、「単量体」ということがある。
このような縮合重合反応によれば、本実施形態の高分子化合物を製造することができる。
ZT-ArT (1T)
本実施形態の化合物は、上記の高分子化合物の製造に有用な上記式(5)で示される化合物である。
本実施形態の高分子化合物は、1価の架橋性基を有する場合に、炭素クラスターと1価の架橋性基とを結合させた高分子化合物とすることが可能である。このような高分子化合物は、例えば、溶媒中でディールスアルダー反応などによりこれらを反応させ、精製処理を行うことで合成することができる。このようにして得られた本実施形態の高分子化合物を用いて製造された発光素子は、正孔輸送性が優れ、かつ、輝度寿命が優れる。
上記式(2)で示される構成単位を有する場合、nは1~4であることが好ましく、1~3の整数であることがより好ましく、2であることがさらに好ましい。上記式(4)で示される構成単位を有する場合、mは1または2であることが好ましく、2であることがより好ましい。
本実施形態の組成物は、上記高分子化合物と、正孔輸送性材料、電子輸送性材料および発光材料からなる群より選ばれる少なくとも1種類の材料とを含有する。
本実施形態の高分子化合物は、溶媒、好ましくは有機溶媒に溶解または分散させた組成物(以下、液状組成物ということがある。)としてもよい。
このような液状組成物は、インク、ワニスとも呼ばれる。発光素子に使用する有機薄膜を形成するために、該液状組成物を用いる場合、液状組成物は本実施形態の高分子化合物が溶媒に溶解した溶液であることが好ましい。
混合有機溶媒として用いる場合、上記の有機溶媒群における有機溶媒の2種類または3種類以上を組み合わせることが好ましい。混合有機溶媒としては、上記例示の同じ系の有機溶媒群から複数種類の有機溶媒を組み合わせても、異なる系の有機溶媒群から1種類以上ずつを組み合わせてもよい。その組成比は、各有機溶媒の物性、および、高分子化合物等の溶解性を考慮して決めることができる。
芳香族炭化水素溶媒および脂肪族炭化水素溶媒;芳香族炭化水素溶媒および芳香族エーテル溶媒;芳香族炭化水素溶媒および脂肪族エーテル溶媒;芳香族炭化水素溶媒および非プロトン性極性溶媒;芳香族エーテル溶媒および非プロトン性極性溶媒等。
また、上記例示の有機溶媒を単独で用いる単独有機溶媒または混合有機溶媒には、水をさらに添加することもできる。
本実施形態の有機薄膜は、上記高分子化合物を含有する。本実施形態の有機薄膜は、上記液状組成物から容易に製造することができる。また、本発明の第2の有機薄膜は、本実施形態の高分子化合物を架橋させることにより不溶化させた、不溶化有機薄膜であり、通常、加熱または光照射等の処理による外部刺激によって架橋させて硬化することにより得ることができる。不溶化有機薄膜は、有機溶媒等の溶媒に難溶のため、発光素子の積層化等に有利である。
また、有機半導体薄膜を用いて、有機トランジスタを作製することができる。具体的には、SiO2等の絶縁膜とゲート電極とを形成したSi基板上に有機半導体膜を形成し、Au等でソース電極とドレイン電極を形成することにより、有機トランジスタとすることができる。
本実施形態の有機トランジスタは、本実施形態の高分子化合物を含む有機トランジスタである。以下、有機トランジスタの一態様である電界効果型トランジスタについて説明する。
本実施形態の有機光電変換素子(例えば、太陽電池等)は、本実施形態の高分子化合物を含む有機光電変換素子である。
次に、本実施形態の発光素子について説明する。
a)陽極/発光層/陰極
b)陽極/正孔輸送層/発光層/陰極
c)陽極/発光層/電子輸送層/陰極
d)陽極/正孔輸送層/発光層/電子輸送層/陰極
a’)陽極/正孔輸送層/発光層/陰極
b’)陽極/正孔輸送層/正孔輸送層/発光層/陰極
c’)陽極/正孔輸送層/発光層/電子輸送層/陰極
d’)陽極/正孔輸送層/正孔輸送層/発光層/電子輸送層/陰極
e)陽極/電荷注入層/発光層/陰極
f)陽極/発光層/電荷注入層/陰極
g)陽極/電荷注入層/発光層/電荷注入層/陰極
h)陽極/電荷注入層/正孔輸送層/発光層/陰極
i)陽極/正孔輸送層/発光層/電荷注入層/陰極
j)陽極/電荷注入層/正孔輸送層/発光層/電荷注入層/陰極
k)陽極/電荷注入層/発光層/電子輸送層/陰極
l)陽極/発光層/電子輸送層/電荷注入層/陰極
m)陽極/電荷注入層/発光層/電子輸送層/電荷注入層/陰極
n)陽極/電荷注入層/正孔輸送層/発光層/電子輸送層/陰極
o)陽極/正孔輸送層/発光層/電子輸送層/電荷注入層/陰極
p)陽極/電荷注入層/正孔輸送層/発光層/電子輸送層/電荷注入層/陰極
q)陽極/絶縁層/発光層/陰極
r)陽極/発光層/絶縁層/陰極
s)陽極/絶縁層/発光層/絶縁層/陰極
t)陽極/絶縁層/正孔輸送層/発光層/陰極
u)陽極/正孔輸送層/発光層/絶縁層/陰極
v)陽極/絶縁層/正孔輸送層/発光層/絶縁層/陰極
w)陽極/絶縁層/発光層/電子輸送層/陰極
x)陽極/発光層/電子輸送層/絶縁層/陰極
y)陽極/絶縁層/発光層/電子輸送層/絶縁層/陰極
z)陽極/絶縁層/正孔輸送層/発光層/電子輸送層/陰極
aa)陽極/正孔輸送層/発光層/電子輸送層/絶縁層/陰極
ab)陽極/絶縁層/正孔輸送層/発光層/電子輸送層/絶縁層/陰極
図1に示される発光素子100は、基板10と、該基板10上に形成された陽極11、正孔注入層12、正孔輸送層13、発光層14、電子輸送層15、電子注入層16および陰極17とを有している。陽極11は、基板10と接するように基板10上に設けられており、陽極11の基板10とは反対側には、正孔注入層12、正孔輸送層13、発光層14、電子輸送層15、電子注入層16および陰極17が、この順で積層されている。正孔輸送層13には、本発明の実施形態の上記高分子化合物が含まれる。
以下に本実施例で用いられた分析方法にかかる測定条件を説明する。
測定する高分子化合物を約0.05重量%の濃度になるようにテトラヒドロフランに溶解させ、GPCに10μL注入した。GPCの移動相としてテトラヒドロフランを用い、2.0mL/分の流速で流した。カラムとして、PLgel MIXED-B(ポリマーラボラトリーズ製)を用いた。検出器には示差屈折率検出器(島津製作所製、商品名:RID-10A)を用いた。
HOD1)陽極/正孔輸送層/陰極
HOD2)陽極/発光層/陰極
HOD3)陽極/正孔輸送層/発光層/陰極
HOD4)陽極/正孔注入層/正孔輸送層/発光層/陰極
化合物1を用いて、下記のとおり化合物2を合成した。
下記式(K-1)で示される構成単位と、下記式(K-2)で示される構成単位を、92.5:7.5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物A)の合成を、下記のとおり行った。
上記式(K-1)で示される構成単位と、下記式(K-3)で示される構成単位を、92.5:7.5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物B)の合成を、下記のとおり行った。
上記式(K-1)で示される構成単位と、上記式(K-2)で示される構成単位と、下記式(K-4)で示される構成単位を、90:5:5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物C)の合成を、下記のとおり行った。
上記式(K-1)で示される構成単位と、下記式(K-5)で示される構成単位と、上記式(K-3)で示される構成単位を、50:42.5:7.5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物D)の合成を、下記のとおり行った。
正孔のみを流すことができる素子であるホールオンリーデバイス1を作製し、本発明の化合物、かかる化合物を含有する組成物、これらを含有する有機薄膜を用いた電子素子の正孔電流量を評価した。
陽極としてITOの薄膜が形成されたガラス基板にUVオゾン洗浄を施した後、該基板上に、第1有機層形成用組成物をスピンコート法によって塗布し、厚さ35nmの有機薄膜を得た。ここで第1有機層形成用組成物にはPlextronics社製の有機導電体材料であるPlexcore(AQ-1200)を用いた。
本発明の高分子化合物である高分子化合物Aとキシレンとを、該高分子化合物Aが1.8重量%の割合となるように混合し、第2有機層形成用組成物を得た。
上記(1-2)で得た、陽極、第1有機層及び第2有機層を有する基板の第2有機層の上に、真空蒸着法によって、厚さ50nmの金層である陰極を形成した。なお、この金の蒸着工程は、真空度が1×10-4(Pa)以下に到達した後に開始した。
上記(1-3)までの工程で得た、基板、陽極、第1有機層、第2有機層および陰極を備える積層構造を有する基板を真空蒸着装置より取り出し、窒素ガス雰囲気下で、封止ガラスおよび2液混合エポキシ樹脂(Robnor Resins社製のPX681C)にて封止し、ホールオンリーデバイス1を得た。
上記のホールオンリーデバイス1に、直流電圧電流発生器を用いて、-1Vから+20Vまで電圧を印加し、電界強度が500kV/cmの時にホールオンリーデバイス1に流れる電流密度[mA/cm2]を測定した。その結果、電流密度は95.4mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス1に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス1を流れる電子電流は、正孔電流に対して極微量であることが確認された。
第2有機層を構成する化合物として高分子化合物Bを用いた他は、実施例5と同様にして、ホールオンリーデバイス2を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス2に流れる電流密度は103.2mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス2に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス2を流れる電子電流は、正孔電流に対して極微量であることが確認された。
第2有機層を構成する化合物として高分子化合物Cを用いた他は、実施例5と同様にして、ホールオンリーデバイス3を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス3に流れる電流密度は165.5mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス3に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス3を流れる電子電流は、正孔電流に対して極微量であることが確認された。
第2有機層を構成する化合物として高分子化合物Dを用いた他は、実施例5と同様にして、ホールオンリーデバイス4を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス4に流れる電流密度は114.4mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス4に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス4を流れる電子電流は、正孔電流に対して極微量であることが確認された。
上記式(K-1)で示される構成単位と、下記式(K-8)で示される構成単位と、上記式(K-2)で示される構成単位と、上記式(K-4)で示される構成単位を、50:40:5:5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物E)の合成を、下記のとおり行った。
上記式(K-1)で示される構成単位と、下記式(K-9)で示される構成単位と、上記式(K-2)で示される構成単位と、上記式(K-4)で示される構成単位を、50:40:5:5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物F)の合成を、下記のとおり行った。
第2有機層を構成する化合物として高分子化合物Fを用いた他は、実施例5と同様にして、ホールオンリーデバイス5を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス5に流れる電流密度は73.8mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス5に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス5を流れる電子電流は、正孔電流に対して極微量であることが確認された。
上記式(K-1)で示される構成単位と、上記式(K-2)で示される構成単位と、下記式(K-6)で示される構成単位を、42.5:7.5:50のモル比(仕込み原料による理論値)で有する重合体(高分子化合物AA)の合成を、下記のとおり行った。
第2有機層を構成する化合物として高分子化合物AAを用いた他は、実施例5と同様にして、ホールオンリーデバイス101を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス101に流れる電流密度は9.4mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス101に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス101を流れる電子電流は、正孔電流に対して極微量であることが確認された。
上記式(K-1)で示される構成単位と、上記式(K-2)で示される構成単位と、上記式(K-6)で示される構成単位と、下記式(K-7)で示される構成単位を、30:7.5:50:12.5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物BB)の合成を、下記のとおり行った。
第2有機層を構成する化合物として高分子化合物BBを用いた他は、実施例5と同様にして、ホールオンリーデバイス102を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス102に流れる電流密度は5.7mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス102に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス102を流れる電子電流は、正孔電流に対して極微量であることが確認された。
上記式(K-1)で示される構成単位と、上記式(K-6)で示される構成単位と、上記式(K-3)で示される構成単位を、42.5:50:7.5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物CC)の合成を、下記のとおり行った。
上記式(K-1)で示される構成単位と、上記式(K-6)で示される構成単位と、上記式(K-2)で示される構成単位と、上記式(K-4)で示される構成単位を、50:40:5:5のモル比(仕込み原料による理論値)で有する重合体(高分子化合物DD)の合成を、下記のとおり行った。
下記式(K-10)で示される構成単位と、上記式(K-7)で示される構成単位と、上記式(K-2)で示される構成単位を、50:25:25のモル比(仕込み原料による理論値)で有する重合体(高分子化合物EE)の合成を、下記のとおり行った。
第2有機層を構成する化合物として高分子化合物CCを用いた他は、実施例5と同様にして、ホールオンリーデバイス103を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス103に流れる電流密度は2.0mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス103に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス103を流れる電子電流は、正孔電流に対して極微量であることが確認された。
第2有機層を構成する化合物として高分子化合物DDを用いた他は、実施例5と同様にして、ホールオンリーデバイス104を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス104に流れる電流密度は38.1mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス104に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス104を流れる電子電流は、正孔電流に対して極微量であることが確認された。
第2有機層を構成する化合物として高分子化合物EEを用いた他は、実施例5と同様にして、ホールオンリーデバイス105を作製して評価した。その結果、電界強度が500kV/cmの時にホールオンリーデバイス105に流れる電流密度は5.0mA/cm2であった。結果を表1に示す。なお、本評価において、500kV/cmの電界強度がホールオンリーデバイス105に印加された際に、電流励起による発光は観測されず、ホールオンリーデバイス105を流れる電子電流は、正孔電流に対して極微量であることが確認された。
11 陽極
12 正孔注入層
13 正孔輸送層
14 発光層
15 電子輸送層
16 電子注入層
17 陰極
20 基板
21 陽極
22 正孔注入層
23 発光層
24 陰極
25 保護層
100、110 発光素子
200 面状光源
Claims (18)
- 下記式(1)で示される構成単位を全構成単位の合計に対して51モル%以上含み、かつ、下記式(2)で示される構成単位および下記式(3)で示される構成単位のうちの少なくとも一方を含む、高分子化合物。
aは1~3の整数を示し、bは0または1を示す。
Ar1およびAr3は、それぞれ独立に、置換基を有していてもよいアリーレン基、または、置換基を有していてもよい2価の複素環基を示し、Ar2およびAr4は、それぞれ独立に、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および置換基を有していてもよい2価の複素環基からなる群より選ばれる、互いに同一でも異なっていてもよい2個以上の基が連結した2価の基を示し、Ar1、Ar2、Ar3およびAr4はそれぞれ、これらの基が結合している窒素原子に結合している当該基以外の基と互いに連結して環構造を形成していてもよい。Ar2が複数個存在する場合、それらは同一でも異なっていてもよい。
RA、RBおよびRCは、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。RBが複数個存在する場合、それらは同一でも異なっていてもよい。]
naは0~3の整数を示し、nbは0~12の整数を示し、nAは0または1を示し、nは0~4の整数を示す。
Ar5は置換基を有していてもよい(2+n)価の芳香族炭化水素基または置換基を有していてもよい(2+n)価の複素環基を示す。
LaおよびLbは、それぞれ独立に、置換基を有していてもよいアルキレン基または置換基を有していてもよいフェニレン基を示す。Laが複数個存在する場合、それらは同一でも異なっていてもよい。Lbが複数個存在する場合、それらは同一でも異なっていてもよい。
LAは酸素原子または硫黄原子を示す。LAが複数個存在する場合、それらは同一でも異なっていてもよい。
Xは1価の架橋性基を示す。Xが複数個存在する場合、それらは同一でも異なっていてもよい。]
cは0または1を示す。
Ar6およびAr8は、それぞれ独立に、置換基を有していてもよいアリーレン基または置換基を有していてもよい2価の複素環基を示し、Ar7は、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および置換基を有していてもよい2価の複素環基からなる群より選ばれる同一であっても異なっていてもよい2個以上の基が連結した2価の基を示す。
R1は1価の架橋性基を示し、R2は1価の架橋性基、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。] - 前記式(2)で示される構成単位が、下記式(4)で示される構成単位である、請求項1に記載の高分子化合物。
ncは0~3の整数を示し、ndは0~12の整数を示し、nBは0または1を示し、mは0~2の整数を示す。
LcおよびLdは、それぞれ独立に、置換基を有していてもよいアルキレン基または置換基を有していてもよいフェニレン基を示す。Lcが複数個存在する場合、それらは同一でも異なっていてもよい。Ldが複数個存在する場合、それらは同一でも異なっていてもよい。
LBは酸素原子または硫黄原子を示す。LBが複数個存在する場合、それらは同一でも異なっていてもよい。
Xは1価の架橋性基を示す。Xが複数個存在する場合、それらは同一でも異なっていてもよい。
R3は、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアルコキシ基、置換基を有していてもよいアリール基、置換基を有していてもよいアリールオキシ基、置換基を有していてもよい1価の複素環基または置換基を有していてもよい1価の複素環オキシ基を示す。R3が複数個存在する場合、それらは同一でも異なっていてもよい。] - 前記Xが、下記式(X-2)で示される1価の架橋性基である、請求項1または2に記載の高分子化合物。
neおよびnfは、それぞれ独立に、0または1を示す。
LX1は酸素原子、硫黄原子、カルボニル基または-O-CO-で示される基を示す。
R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアルコキシ基、置換基を有していてもよいアルキルチオ基、置換基を有していてもよいアリール基、置換基を有していてもよいアリールオキシ基、置換基を有していてもよいアリールチオ基、置換基を有していてもよい1価の複素環基、置換基を有していてもよいアミノ基、置換基を有していてもよいシリル基、置換基を有していてもよいアシル基、置換基を有していてもよいアシルオキシ基、ハロゲン原子、シアノ基またはニトロ基を示す。] - 前記Xが複数個存在する場合、それらは置換基を有していてもよい下記式(X-1)で示される1価の架橋性基を少なくとも1種類含み、かつ、下記式(X-2)で示される1価の架橋性基を少なくとも1種類含む、請求項1または2に記載の高分子化合物。
neおよびnfは、それぞれ独立に、0または1を示す。
LX1は酸素原子、硫黄原子、カルボニル基または-O-CO-で示される基を示す。
R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアルコキシ基、置換基を有していてもよいアルキルチオ基、置換基を有していてもよいアリール基、置換基を有していてもよいアリールオキシ基、置換基を有していてもよいアリールチオ基、置換基を有していてもよい1価の複素環基、置換基を有していてもよいアミノ基、置換基を有していてもよいシリル基、置換基を有していてもよいアシル基、置換基を有していてもよいアシルオキシ基、ハロゲン原子、シアノ基またはニトロ基を示す。] - 前記Ar2が、置換基を有していてもよい2,7-フルオレンジイル基、置換基を有していてもよいナフタレンジイル基、置換基を有していてもよいフェナントレンジイル基、置換基を有していてもよいジヒドロフェナントレンジイル基、置換基を有していてもよいアントラセンジイル基、置換基を有していてもよいピレンジイル基または置換基を有していてもよいペリレンジイル基である、請求項1~5のいずれか1項に記載の高分子化合物。
- 下記式(5)で示される第1単量体と下記式(6)で示される第2単量体とを含む単量体組成物の重合反応を行って、請求項1~6のいずれか1項に記載の高分子化合物を得る、高分子化合物の製造方法。
dは1~3の整数を示し、eは0または1を示す。
Ar9およびAr11は、それぞれ独立に、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基を示し、Ar10およびAr12は、それぞれ独立に、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および置換基を有していてもよい2価の複素環基からなる群より選ばれる同一でも異なっていてもよい2個以上の基が連結した2価の基を示し、Ar9、Ar10、Ar11およびAr12はそれぞれ、これらの基が結合している窒素原子に結合している当該基以外の基と互いに連結して環構造を形成していてもよい。Ar10が複数個存在する場合、それらは同一でも異なっていてもよい。
RD、REおよびRFは、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。
REが複数個存在する場合、それらは同一でも異なっていてもよい。
Z1およびZ2は、それぞれ独立に、下記置換基A群から選ばれる基を示す。
<置換基A群>
-B(OR101)2で示される基(R101は水素原子または置換基を有していてもよいアルキル基を示し、互いに連結して、R101に結合する酸素原子とともに環構造を形成していてもよい。複数個存在するR101は同一でも異なっていてもよい。)、
-BF4Q1で示される基(Q1は、Li+、Na+、K+、Rb+およびCs+からなる群より選ばれる1価の陽イオンを示す。)、
-MgY1で示される基(Y1は、塩素原子、臭素原子またはヨウ素原子を示す。)、
-ZnY2で示される基(Y2は、塩素原子、臭素原子またはヨウ素原子を示す。)、および、
-Sn(R102)3で示される基(R102は水素原子またはアルキル基を示し、互いに連結して、R102に結合するスズ原子とともに環構造を形成していてもよい。複数個存在するR102は同一でも異なっていてもよい。)。]
fは0~3の整数を示し、gは0または1を示す。
Ar13およびAr15は、それぞれ独立に、置換基を有していてもよいアリーレン基または置換基を有していてもよい2価の複素環基を示し、Ar14およびAr16は、置換基を有していてもよいアリーレン基、置換基を有していてもよい2価の複素環基、または、置換基を有していてもよいアリーレン基および2価の複素環基からなる群より選ばれる同一でも異なっていてもよい2個以上の基が連結した2価の基を示し、Ar13、Ar14、Ar15およびAr16はそれぞれ、これらの基が結合している窒素原子に結合している当該基以外の基と互いに連結して環構造を形成していてもよい。Ar14が複数個存在する場合、それらは同一でも異なっていてもよい。
RG、RHおよびRIは、それぞれ独立に、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい1価の複素環基を示す。
RHが複数個存在する場合、それらは同一でも異なっていてもよい。
Z3およびZ4は、それぞれ独立に、下記置換基B群から選ばれる基を示す。
<置換基B群>
塩素原子、臭素原子、ヨウ素原子、-O-S(=O)2R103で示される基(R103は、置換基を有していてもよいアルキル基または置換基を有していてもよいアリール基を示す。)。] - 請求項1~6のいずれか1項に記載の高分子化合物と、
正孔輸送性材料、電子輸送性材料および発光材料からなる群より選ばれる少なくとも1種類の材料を含有する組成物。 - 請求項1~6のいずれか1項に記載の高分子化合物と、溶媒とを含有する組成物。
- 溶媒をさらに含有する、請求項8に記載の組成物。
- 請求項1~6のいずれか1項に記載の高分子化合物を含有する有機薄膜。
- 請求項8に記載の組成物を含有する有機薄膜。
- 請求項11に記載の有機薄膜を有機溶媒に対して不溶化させた、不溶化有機薄膜。
- 請求項12に記載の有機薄膜を有機溶媒に対して不溶化させた、不溶化有機薄膜。
- 請求項11または12に記載の有機薄膜を有する発光素子。
- 請求項13または14に記載の不溶化有機薄膜を有する発光素子。
- 請求項15または16に記載の発光素子を有する面状光源。
- 請求項15または16に記載の発光素子を有する表示装置。
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US14/374,546 US9267003B2 (en) | 2012-01-30 | 2013-01-18 | Polymer compound, composition, and light-emitting device using the same |
JP2013556308A JP6033795B2 (ja) | 2012-01-30 | 2013-01-18 | 高分子化合物および組成物、並びにこれらを用いた発光素子 |
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JP (1) | JP6033795B2 (ja) |
TW (1) | TWI564320B (ja) |
WO (1) | WO2013114976A1 (ja) |
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US11453628B2 (en) | 2018-12-05 | 2022-09-27 | Samsung Display Co., Ltd. | Condensed cyclic compound, composition including the same, and organic light-emitting device including thin film formed from the composition |
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Also Published As
Publication number | Publication date |
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US20140367617A1 (en) | 2014-12-18 |
JPWO2013114976A1 (ja) | 2015-05-11 |
TW201348292A (zh) | 2013-12-01 |
US9267003B2 (en) | 2016-02-23 |
TWI564320B (zh) | 2017-01-01 |
JP6033795B2 (ja) | 2016-11-30 |
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